Arthur Rex : A Legendary Novel

 https://welib.org/md5/ad5d115f5ccda094a92c6d55aa2f3e37

Club Management: June 1981

 https://welib.org/md5/0227000c90fca82083b2f869daf0e335

Kosmos 849

 1976-083A

---

Kosmos-849 was launched 1976 Aug 18, overlapping the mission of Kosmos-801 by 4 months.

Kosmos-849
Date	Time	Event	Orbit
1976 Aug 18	0930	Launch by 11K63	NIIP-53 LC133/1
	0932	Stage 2 burn
	0936?	Stage 2 sep
			95.9 264 x 865 x 71.0
1977 Jun 30		end of ops
1978 Apr 24		Reentered

Aviation Week: November 9,1981

 https://welib.org/md5/2ead6f510696bd9542da993f2ae82fbe

Kosmos 275

 1969-031A

---

The fifth DS-P1-I was Kosmos-275, in Mar 1969.

Kosmos-275
Date	Time	Event	Orbit
1969 Mar 28	1600	Launch by 11K63	PL
	1602	Stage 2 burn
	1607?	Stage 2 sep
1969 Mar 30	0000		95.18 273 x 780 x 70.98
1969 Aug 6		End of operations
1970 May 24	0643?	Reentered

Transit O-3

 1965-017A

---

NNS O-3 (30030, Oscar 3) was launched in Mar 1965, but the Ablestar final stage SS-03 No. 018 failed to restart and the satellite reentered from its transfer orbit after 3 months. The planned orbit was 1070 x 1070 x 90.0.

NNS O-3
Date	Time	Event	Orbit
1965 Mar 11	1339:59	Launch by Thor Ablestar	V 75-1-1
	1342:28	Thor MECO (T+2:29)
	1342:32	Thor sep (T+2:33)
	1342:32	AB 018 burn (T+2:33)
	1347:26	AB 018 MECO	97.88 295 x 1019 x 90.00
	1418?	Ablestar failed to restart
	1420?	Sep from Ablestar
1965 Mar 21			96.67 206 x 991 x 90.0
1965 Apr 6		End of transmissions
1965 Apr 12	0500		95.2 211 x 890 x 89.97 (RAE)
1965 Jun 14		Reentered

Aviation Week: December 14,1981

 https://welib.org/md5/bf64798be605bc1d7f1a26897c4696db

Space World: June-July 1981

 https://welib.org/md5/a3e5df2654bc4b55d93caccdb46edd6b

Kosmos 1318

 1981-109A

---

Kosmos-1318
Date	Time	Event	Orbit
1981 Nov 3	1300	Launch by Soyuz	PL
	1308	Blok-I sep
1981 Nov 3			89.75 172x352x67.1
1981 Nov 8			89.82 160x370x67.1 from 89.38 166x322
1981 Nov 14			90.06 164x391x67.1 from 89.06 155x301
1981 Nov 22			88.83 152x281x67.1 from 88.54 143x260
1981 Nov 23			89.23 166x306x67.1 from 88.62 146x265
1981 Nov 25			89.83 172x359x67.1 from 88.92 161x280
1981 Dec 4			89.02 162x289x67.1
1981 Dec 5	0224	reentered

Fortune: August 10,1981

 https://welib.org/md5/cf8d60759cd9fa874b5cf2f030e12dcf

Journal of the British Interplanetary Society: July 1981

 https://welib.org/md5/c448d98d49a9a0a39504c5b27f0a1755

Spaceflight: May 1981

 https://welib.org/md5/ef8421c40a3ca2b93f2a8d317269dfc4

Shuttle: the world’s first spaceship

https://welib.org/md5/b50eafe93eacf6f07f91bea451aa7f14

Spaceflight: July 1981

 https://welib.org/md5/1f8763addd914cab1f588bcfc870cfee

The Space Shuttle

 https://welib.org/md5/e82179e113e45848df7f1aa0288aa8c9

Aviation Week: July 6,1981

 https://welib.org/md5/ad02e4bd11b6c39df7f96f683948d1ca

Spaceflight: April 1981

 https://welib.org/md5/2b5979c130890f21f6e15cfb475dc122

Club Management: June 1981

 https://welib.org/md5/0227000c90fca82083b2f869daf0e335

Teen: June 1981

 https://welib.org/md5/17d8837d864c97a3b638ae2fd0724bae

Seventeen: May 1981

 https://welib.org/md5/e381bcac21a3c0cee35ffb0bf3fc3973

The New Yorker: June 1,1981

 https://welib.org/md5/228b2b0f06ba5155b3ac0415271fd28d

From Vinland to Mars

 https://welib.org/md5/2d048e5cab4066e10e54130270754956

Encyclopedia buying guide : a consumer guide to general encyclopedias in print

 https://welib.org/md5/67717031e9e61f06716f110a91294c95

People: June 1,1981

 https://welib.org/md5/fb3ba9bde8ceb6e9f328b0f5f56d1dfa

People: August 3,1981

 https://welib.org/md5/32db6645d9c0aa81bfa254727ed0aa3f

Seventeen: March 1981

 https://welib.org/md5/b349557940b1a062be0ed302585e6f97

Spaceflight: February 1981

 https://welib.org/md5/6c1f9c233023ee07212167bb13ecce5e

Booklist: July 1,1981

 https://welib.org/md5/02e8ca7fe5d0fe6c7fbd1d0800490306

The people's chronology : a year-by-year record of human events from prehistory to the present

 https://welib.org/md5/d97906a535ff1aed79004be6cd0612a6

Kosmos 1315

 1981-103A

---

Kosmos-1315
Date	Time	Event	Orbit
1981 Oct 13	2301	Launch by 8A92M	Plesetsk
	2306?	Blok E burn
	2311?	Blok E sep
1981 Oct 14			625x665x81.19

Kosmos 687

 1974-076A

---

Kosmos-687
Date	Time	Event	Orbit
1974 Oct 11	1130	Launch by 11K65M	Plesetsk
	1150?	Stage 2 sep
1974 Oct 11			94.5 286x698x74.0
1978 Feb 5		reentered

Aviation Week: May 11,1981

 https://welib.org/md5/87ae356793a9aaf13c50ab3dfe56cc76

Molniya 119

  1970-049A

---

The first D-plane satellite was Molniya-1 F19, launched on 26 Jun 1970.

Molniya-1 F19
Date	Time	Event	Orbit
1970 Jun 26	0323:01	Launch by 8K78M	PL
		BVGD sep
		GO sep
		T+4:46 Blok A sep
		T+4:56 KhO sep
		T+8:46 Blok-I MECO
	0331	T+8:50 Blok-I sep
		T+53:16 BOZ burn
	0416?	T+53:56 BOZ sep
		ML burn
		T+56:46 ML MECO
	0419?	T+56:54 ML sep
1970 Jun 30			700.39 331 x 39051 x 65.39
1970 Jul 8			700.30 475 x 39013 x 65.39
1970 Jul 13			717.59 466 x 39879 x 65.4
1970 Jul 27			717.60 472 x 39873 x 65.3
1970 Aug		Orbit raised
1970 Nov 18			717.59 603 x 39741 x 65.5
1971 Jan 24			717.94 740 x 39621 x 65.5
1972 Feb 16			717.66 1296 x 39052 x 65.5
1972 Apr		end of stabilized operations
1973 Jan 29			717.47 1531 x 38807 x 65.5
1974 May 30			717.39 1031 x 39304 x 65.4
1975 Oct 21			717.10 233 x 40088 x 65.0
1976 Feb 10			156.73 59 x 6442 x 65.0
1976 Feb 16		Reentered

Booklist: May 1,1981

 https://welib.org/md5/a257efcd278732a7010c5402de441391

Soviet conquest from space

https://welib.org/md5/0329c93b5c5e90960bc0fae69c228dad

Kosmos 386

  1970-110A

---

Zenit-4M flight 9 was launched in Dec 1970 as Kosmos-386. The satellite was recovered after a 13 day flight.

Kosmos-386
Date	Time	Event	Orbit
1970 Dec 15	1000:01	Launch by 11A57	KB
	1004	Blok-I burn
	1008	Blok-I sep
	1847		89.13 221 x 241 x 65.0
		Orbit raise
1970 Dec 16	1110		89.39 214 x 274 x 65.0
1970 Dec		Orbit raise
1970 Dec 23	2040		90.00 212 x 336 x 65.0
1970 Dec 27	1909		89.97 211 x 334 x 65.0
1970 Dec 28	0400	Engine sep
	0705?	Retrofire
	0714?	PO sep
	0721?	Entry
	0736?	Landed after 12.9d

Aviation Week: June 8,1981

 https://welib.org/md5/1083bae4454ecb02d143b52528a07e9a

Seventeen: April 1981

 https://welib.org/md5/d1650974086a7154ced98f572f4beac1

Space World: May 1981

 https://welib.org/md5/5649de813624fef3f8f373f81ceb0543

Social Education : January 1981

 https://welib.org/md5/871ae7ee07f2c89a4b1eda956ac86405

Aviation Week: April 20,1981

 https://welib.org/md5/88063c5b016e50f74b815874322a640b

Club Management: May 1981

 https://welib.org/md5/1d797fb6ccfbee915af2556538d3e94a

The High School Journal: April 1981

 https://welib.org/md5/8f1c28765f9ede8cc65df584e6cd561a

Encyclopedia of the Great Composers and Their Music

https://welib.org/md5/1f330a19ae8a6b0a2d9e22ef133b42cd

https://welib.org/md5/0037d9283ecca6c9c503c065d51d544e

Australia: A Chronology and Fact Book, 1606-1976

 https://welib.org/md5/ef6313c904931ba487ac40ae8a4cb82b

Kosmos 719

 1975-018A

---

Two-tone telemetry; Hi res satellite TF beacon

Kosmos-719
Date	Time	Event	Orbit
1975 Mar 12	0855	Launch by Soyuz-U	Baykonur
	0859	Blok-I burn
	0903	Blok-I sep
1975 Mar 12			89.31 172 x 309 x 65.0
1975 Mar 15			89.27 173 x 303 x 65.0
1975 Mar 15			89.45 171 x 322 x 65.0
1975 Mar 16			89.43 173 x 319 x 65.0
1975 Mar 24			89.26 171 x 304 x 65.0
1975 Mar 25
	0457?	Deorbit
	0507?	PO sep
	0511?	Entry
	0527?	Landed

Aviation Week: May 18,1981

 https://welib.org/md5/67ceebf112bddb1963d8b67bbd759f01

Kosmos 937

 1977-077A

---

RCS was 30m2. A single piece of debris was cataloged associated with launch (but in the payload orbit).

Kosmos-937
Date	Time	Event	Orbit
1977 Aug 24	0707	Launch by 11K69	Baikonur
	0709	Stage 1 sep
	0711	Stage 2 sep
	0756?	AKM burn
1977 Aug 24			93.3 424x444x65.0
1978 Mar 15?		end of ops?
1978 Oct 19		reentered

Spaceflight: January 1981

 https://welib.org/md5/89c71b5bc9373bf5b46b2d2de33de4cb

Kosmos 36

 1964-042A

---

The first DS-P1-Yu satellite was launched in Jul 1964 from the GTsP4 range at Kapustin Yar and was named Kosmos-36. The 63S1 launch vehicle placed Kosmos-36 in a 261 x 477 km x 49 deg orbit, similar to that used by the scientific DS satellites. It remained in orbit for eight months and transmitted until reentry.

Kosmos-36
Date	Time	Event	Orbit
1964 Jul 30	0336?	Launch by 63S1	GTsP4
	0338?	Stage 2 burn
	0342?	Stage 2 MECO
	0343?	Stage 2 MECO
1964 Aug 2	0930		91.85 261 x 477 x 49.0 (RAE)
1965 Feb 28	0043?	Reentered

Payload:

• Special equipment payload

• Rubin-1D orbit control

• Tral-P1 telemetry system

• Mayak transmitter

• BKRD-2D command radio installation

Space World: April 1981

 https://welib.org/md5/c7563ed4e4bae3a189b9515e191ef4c5

The New Yorker: May 18,1981

 https://welib.org/md5/bc2c5bb5dcc529af58e48e68fe76c893

Kosmos 552

 1973-016A

---

Kosmos-552 was launched in Mar 1973 from Plesetsk. The mission lasted 12 days. The satellite carried a 16KS capsule which was ejected after only 4 days.

Kosmos-552
Date	Time	Event	Orbit
1973 Mar 22	1000:00	Launch by 11A57	PL
	1004?	Blok-I burn
	1008?	Blok-I sep
	1846		89.64 202 x 310 x 72.8
	1900		89.68 204 x 312 x 72.84 (RAE)
1973 Mar 26		16KS Capsule sep (16C)
1973 Mar 27	1519		89.60 201 x 307 x 72.8
1973 Apr 2	1739		89.49 200 x 298 x 72.8
1973 Apr 3	0530?	Retrofire
	0540?	PO sep
	0546?	Entry
	0600?	Landed

The Spirit of 'Seventy-Six: The Story of the American Revolution As Told by Participants

 https://welib.org/md5/85f78fe1a7947af2a2c2a0c65abe6d33

Album of Science: The Nineteenth Century

 https://welib.org/md5/1310dc0cfe00b0925933ff0cbf8ee485

People: April 13,1981

 https://welib.org/md5/18aeffd568a48fba0ca712d3ec7828ce

Opera News: April 11,1981

 https://welib.org/md5/aa4e2121cdceb644add794a4e47f1e36

Spaceflight: November-December 1980

 https://welib.org/md5/dc80b38cebd30faa622bf37f4594b781

The Jewish almanac: Traditions. History. Religion. Wisdom. Achievements

 https://welib.org/md5/b37a74ae5638a7ba4b4db4b9c766ab5c

Club Management: February 1981

 https://welib.org/md5/37dc23efe9c9d3359ba2bebdd1949ee7

Seventeen: March 1980

 https://welib.org/md5/62c42d7e6d01e10632a46cc4a5e43cf4

Aviation Week: March 30,1981

 https://welib.org/md5/d98f3aefa2d0775f357c4103693d5c03

The New Yorker: April 13,1981

 https://welib.org/md5/172ccffff3ef7b3afe157cc707577a3f

DMSP 25

 1970-070A

---

The second Block 5A satellite, F25, operated until Nov 1970. There were problems with the sensor motor brush due to drying lubricant.

SSO 00:18 LTDN.

DMSP 02525
Date	Time	Event	Orbit
1970 Sep 3	0839:45	Launch by Thor Burner 2	V SLC10W
	0842	Thor MECO
	0851?	Burner II burn
	0854?	Burner II sep
			101.3 764 x 874 x 98.7
1970 Nov 23		end of transmissions

People: June 15,1981

 https://welib.org/md5/09c8b4d2afa050c1ba925d7f24f01dbe

Aviation Week: May 4,1981

 https://welib.org/md5/f9354e0591e41d5f81680b8cf2eb5d25

The King James Version of the Bible

 https://www.gutenberg.org/files/10/10-0.txt

Spaceflight: September-October 1980

 https://welib.org/md5/18a42097bfaae1d06103cda8f2f0638d

Corona 70

  1963-035A

---

Agena D spacecraft 1169 was used for KH-5 Mission 9058A. As well as the ARGON mapping camera, 9058A carried a cosmic ray detector and a subsatellite listed in the SATCAT as `0.1 SQ METER TARGET'. ARGON 9 was launched on 1963 Aug 29 by a Thor Agena D from Vandenberg. Orbital mass was 1201 kg. The SRV was recovered in mid-air after 3 days of flight completing the most successful ARGON flight so far.

KH-5 Mission 9058A
Date	Time	Event	Orbit
1963 Aug 29	2031:04	Launch by Thor Agena D	V Pad 5
	2033	Thor MECO (T+2:27)
	2033	Thor VECO (T+2:36)
	2033	Thor sep (T+2:40)
	2034	Agena burn (T+3:09)
	2038:16	Agena MECO (T+7:12)	90.8 301 x 334 x 81.8 (VCR)
1963 Aug 29?		Deploy target subsatellite	92.0 315 x 422 x 81.9 (SATCAT, 35B)
1963 Aug 30	0332		90.69 280 x 336 x 81.8
1963 Aug 31	1854		90.68 296 x 319 x 81.9
1963 Sep 1	2107?	SRV deorbit rev 48
	2142?	SRV recovered over Pacific after 3.1d
1963 Sep 1		Deb 1963-35D reentered
1963 Sep 2		Deb 1963-35C reentered
1963 Sep 2	2250?	SRV deorbit rev 65
	2330	SRV recovered
1963 Sep 3	0000		90.80 292 x 324 x 81.9 (RAE)
1963 Sep 3	0123		90.68 291 x 324 x 81.9
1963 Oct 22	0230		90.00 261 x 287 x 81.9 (RAE)
1963			87.9 165 x 165 x 81.9 (SATCAT)
1963 Nov 5	0754		88.48 199 x 199 x 81.9
1963 Nov 7	1200?	CORONA 70/Agena 1169 reentered

Club Management: November 1980

 https://welib.org/md5/3ed8be73a3c34896b93f6c0b6f28be91

Social Education: April 1981

 https://welib.org/md5/3ac4f3b2bb2c700f7181027c41827522

The New Yorker: April 20,1981

 https://welib.org/md5/ad31d03b160c36e1678e7d56bac7fb57

Kosmos 614

 1973-098A

---

Kosmos-614 was launched in Dec 1973. 

Kosmos-614
Date	Time	Event	Orbit
1973 Dec 4	1500:01	Launch by R-14
	1502?	Stage 2 burn
	1508?	Stage 2 coast
	1534?	Stage 2 burn 2
	1534?	Stage 2 sep
			100.7 770 x 805 x 74.1

Space World: January 1981

 https://welib.org/md5/8839f3acbb243987fb111c55710057a9

Corona 59

 1963-002A

---

Mission 9051, with Agena D 1157, was launched on 1963 Jan 7 into an 82 degree orbit. The SRV was recovered from the sea after a 4 day flight. The SRV came down 1600 km off course because of a horizon sensor malfunction. The vehicle had erratic attitude control and film ran out on pass 57D,but the film obtained was of good quality. Orbit mass was 1299 kg.

KH-4 Mission 9051
Date	Time	Event	Orbit
1963 Jan 7	2109:49	Launch by Thor Agena D	V Pad 1
	2111	Thor MECO (T+2:29)
	2111	Thor VECO (T+2:38)
	2111	Thor sep (T+2:44)	-5837? x 198 x 82
	2112	Agena burn (T+3:14)
	2116	Agena cutoff (T+7:17)	90.61 193 x 417 x 82.24 (VCR)
	2130		90.54 205 x 399 x 82.23 (RAE)
1963 Jan 8	0541		90.39 203 x 385 x 82.0
1963 Jan 9	0118		90.39 191 x 396 x 82.2
1963 Jan 10	1328		90.26 182 x 392 x 82.2
1963 Jan 11			90.3 202 x 384 x 82.0 (SATCAT)
		Rev 56, end of photography
1963 Jan 11	2305?	SRV sep, deorbit rev 65
	2340?	SRV impact Pacific
1963 Jan 12	0002	SRV located in sea
		9 05N 157 05 W
	1248	SRV inverted, ballast arm broke
		Recovered in raft `shortly after dawn'
1963 Jan 12	1730	SRV recovered?
1963 Jan 13	1811		89.96 181 x 363 x 82.2
1963 Jan 13	1900		90.01 193 x 353 x 82.23 (RAE)
1963 Jan 16		Debris 02B reentered
1963 Jan 21	0930		88.75 168 x 254 x 82.19 (RAE)
1963 Jan 21	0942		88.70 164 x 256 x 82.2
1963 Jan 22			88.7 164 x 256 x 82.0 (SATCAT)
1963 Jan 24	0500?	CORONA 59/Agena 1157 reentered

Corona 111

 1966-072A

---

KH-4A Mission 1036 (CORONA 111) saw the introduction of a new launch vehicle, the Long Tank Thrust Augmented Thor Agena D. The LTTAT, also known as Thorad, was delivered by McDonnell Douglas to USAF in June of 1966, and took off from Vandenberg on Aug 9, placing the KH-4A payload into a retrograde 100 degree inclination orbit. The KH-4A mission had an unusually long duration, with SRV-1 recovered after 7 days and and SRV-2 operating for a further 6 days before recovery. This mission may be the first J-2 model,although the J-2 designation was not used in most documents. The J-2 proposal, reportedly not approved, used Thorad/Agena, had a 14 day lifetime, and could incorporate the OAS orbit adjust system kit. All of these enhancements apply to the later J-1 missions.

KH-4A Mission 1036
Date	Time	Event	Orbit
1966 Aug 9	2046:03	Launch by Thorad Agena D	V SLC1W
	2047:45	Castor II SRMs sep (T+1:42)
	2049:40	Thor MECO (T+3:37)
	2049:49	Thor VECO (T+3:46)
	2049:55	Thor sep (T+3:52)
	2050:01	Agena burn (T+3:58)
	2054:03	Agena MECO (T+8:00)	89.46 193 x 305 x 100.11 (VCR)
1966 Aug 10	0212		89.38 191 x 296 x 100.1
1966 Aug 11	0501		89.32 188 x 294 x 100.1
1966 Aug 12	0451		89.30 188 x 291 x 100.1
1966 Aug 13	2232		89.25 187 x 286 x 100.1
1966 Aug 15			89.4 193 x 239 x 100.12 (SSR)
1966 Aug 15	0230		89.35 194 x 287 x 100.12 (RAE)
1966 Aug 15	0249		89.21 188 x 282 x 100.12
1966 Aug 16	2157		89.16 189 x 276 x 100.11
1966 Aug 17	2357?	SRV-1 ejected rev 115
1966 Aug 17	0034	SRV-1 recovered midair
		22 46N 168 02 W
1966 Aug 21		Rev 211 film supply depleted
1966 Aug 22	0003?	SRV-2 ejected rev 212
1966 Aug 23	0015	SRV-2 recovered midair
		22 31.0 N 165 58W
1966 Aug 31			89.0 185 x 246 x 100.1 (SSR)
1966 Sep 12		CORONA/Agena reentered

Daydream Houses of Los Angeles

 https://welib.org/md5/0f1d3422325396bd54480cdd89e7354c

Variety: November 5,1980

 https://welib.org/md5/a21c8e5ef35983dbbe54218745b2c138

Explorer 51

 1973-101A

---

Atmosphere Explorer C was the first of a new series of Atmosphere Explorers built by RCA for NASA-GSFC. The new AEs had their own propulsion system with two TRW hydrazine thrusters to allow major orbit changes and active spin control. The satellite was designed to probe the upper layers of the Earth's atmosphere, studying its structure and composition. It also carried instruments to measure the effects of solar radiation on the atmosphere.

AE-C was launched on 1973 Dec 16 at 0618 by a Delta 1900 from Vandenberg. The Thor stage separated at 0621 and the Delta second stage ignited to place AE-C in a 150 x 4263 km x 68.1 deg orbit. Initially the orbit perigee was at 13N; this moved up to 68N and then back down again.

In March 1974, the satellite began a series of maneuvers to dip down into the atmosphere for 24 hours and then raise perigee again to avoid decay. These maneuvers were carried out every two weeks; the first one was to a perigee of 140 km, the lowest to a perigee of 129 km. The effect of higher drag during these excursions was to rapidly decrease the apogee, and by 1974 Dec the apogee was only 600 km.

AE-C now entered the second phase of its mission, with a circularization maneuver to enter a 250 x 250 km orbit. This was soon boosted to 390 km altitude, and during 1975 the satellite was maintained between 390 and 250 km altitude. AE-C was deactivated from 1975 Sep 23 to 1976 Feb 20. Its last reboost was carried out on 1977 Mar 18, and it stopped operations on 1978 Dec 11, a day before it reentered.

Launch mass was 668 kg. 1.14m high 1.37m dia. 168 kg of hydrazine could be carried. Control from GSFC. Delta stage 2 mass was 5443 kg full including 4672 kg of prop.

AE-C orbital history
Date	Time	Event	Orbit
1973 Dec 16	0618:00	Launch by Delta 1900
		T+0:36 SRM 1-6 burnout
		T+0:39 SRM 7-9 on
		T+1:17 SRM 7-9 out
		T+1:36 SRM 1-9 sep
	0622:32	T+4:32 MECO
	0622:40	T+4:40 Thor sep
	0622:44	Delta SES-1 burn 5:33
	0622:48	Fairing sep
	0628:17	T+10:17 Delta SECO-1
		T+24:19 Spinup to 12 rpm
	0642:55	T+24:55 Delta sep
	0955		132.48 154 x 4305 x 68.1
1973 Dec 17	0800		132.46 157 x 4301 x 68.1
1974 Jan 7	1325		131.06 150 x 4186 x 68.1
1974 Feb 1	0219		129.67 152 x 4063 x 68.1
1974 Mar 2	1756		128.25 153 x 3939 x 68.1
1974 Mar 6	0516		128.10 153 x 3925 x 68.1
		Lower perigee
1974 Mar 7	0900		127.88 144 x 3915 x 68.1
1974 Mar 8	1034		127.72 136 x 3909 x 68.1
1974 Mar 13	0516		127.14 135 x 3859 x 68.1
		Raise apogee
1974 Mar 14	1307		127.55 138 x 3892 x 68.1
		Raise apogee
1974 Mar 15	1854		127.95 139 x 3925 x 68.1
		Raise apogee
1974 Mar 17	0921		128.30 140 x 3956 x 68.1
		Raise apogee
1974 Mar 19	0202		129.50 143 x 4058 x 68.1
		Raise apogee
1974 Mar 19	1710		130.35 144 x 4131 x 68.1
1974 Mar 26	1818		129.78 143 x 4082 x 68.1
		Raise apogee
1974 Mar 28	0502		130.19 145 x 4116 x 68.1
1974 Apr 9	0021		128.28 144 x 4037 x 68.1
		Raise apogee
	1526		129.74 146 x 4076 x 68.1
1974 Apr 15	0519		129.36 146 x 4042 x 68.1
		Lower perigee
	1815		129.14 129 x 4040 x 68.1
1974 May 1	1915		126.10 130 x 3772 x 68.1
1974 Jun 3	0532		120.27 128 x 3257 x 68.1
		Raise perigee
	2335		120.22 134 x 3247 x 68.1
1974 Jun 4	1336		120.15 134 x 3240 x 68.1
		Raise perigee
1974 Jun 5	2137		119.97 138 x 3221 x 68.1
1974 Jun 12	1502		119.09 135 x 3144 x 68.1
		Raise perigee
1974 Jun 12	1701		119.13 142 x 3142 x 68.1
1974 Jun 14	1638		119.24 145 x 3147 x 68.1
1974 Jun 19	2138		118.82 145 x 3110 x 68.1
		Raise apogee
1974 Jun 20	0736		119.26 147 x 3147 x 68.1
1974 Jun 27	0022		118.93 148 x 3117 x 68.1
		Raise apogee
1974 Jun 28	0010		119.16 148 x 3137 x 68.1
1974 Jul 10	2238		118.03 145 x 3039 x 68.1
		Lower perigee
1974 Jul 11	0036		117.94 136 x 3040 x 68.1
		Adjust perigee
1974 Jul 13	0537		117.65 139 x 3011 x 68.1
1974 Aug 2	0223		114.75 136 x 2751 x 68.1
1974 Aug 22	2339		111.33 139 x 2436 x 68.1
		Lower perigee
1974 Aug 23	0705		110.58 131 x 2375 x 68.1
1974 Aug 29	0322		110.19 137 x 2334 x 68.1
		Lower perigee
1974 Aug 31	1022		109.78 131 x 2301 x 68.1
1974 Sep 7	0418		108.47 138 x 2173 x 68.1
		Lower perigee
1974 Sep 9	1215		108.01 130 x 2139 x 68.1
1974 Sep 10	0238		107.88 130 x 2126 x 68.1
1974 Sep 11	0535		107.63 133 x 2100 x 68.1
1974 Sep 12	1538		107.35 129 x 2078 x 68.1
1974 Sep 28	0445		103.81 128 x 1749 x 68.0
		Lower perigee
1974 Oct 5	1201		102.36 124 x 1616 x 68.0
1974 Oct 11	1217		101.22 123 x 1509 x 68.0
1974 Oct 12	0806		100.96 126 x 1481 x 68.0
		Raise orbit
1974 Oct 12	1013		101.22 132 x 1500 x 68.0
		Lower perigee
1974 Oct 13	0806		100.96 126 x 1481 x 68.0
1974 Oct 17	2231		99.83 123 x 1376 x 68.0
		Lower perigee
1974 Oct 18	2007		99.57 118 x 1357 x 68.0
1974 Oct 31	1844		96.61 119 x 1073 x 68.0
1974 Nov 1	0600		96.51 116 x 1066 x 68.0
1974 Nov 12	2129		93.80 121 x 799 x 68.0
1974 Nov 26	2247		91.00 122 x 525 x 68.0
1974 Nov 27	0926		91.09 130 x 525 x 68.0
1974 Nov 30	1012		90.76 135 x 488 x 68.0
1974 Dec 9	0315		89.64 134 x 378 x 68.0
1974 Dec 10	0308		89.49 133 x 364 x 68.0
		Raise perigee
1974 Dec 13	0243		89.21 142 x 328 x 68.0
1974 Dec 15	0216		89.06 147 x 308 x 68.0
1974 Dec 16	1352		88.87 147 x 289 x 68.0
		Raise perigee
1974 Dec 17	1931		89.16 183 x 281 x 68.0
		Raise perigee
1974 Dec 18	1919		89.49 219 x 278 x 68.0
		Raise perigee
1974 Dec 19	1443		89.89 259 x 279 x 68.0
1975 Jan 1	0640		89.74 251 x 272 x 68.0
1975 Jan 30	1304		89.01 218 x 232 x 68.0
		Raise orbit
1975 Feb 1	0215		89.33 229 x 252 x 68.0
1975 Feb 12	0852		89.03 220 x 232 x 68.0
		Raise orbit
1975 Feb 14	0225		89.11 222 x 239 x 68.0
		Raise orbit
1975 Feb 16	0925		89.19 227 x 240 x 68.0
1975 Feb 26	0527		88.89 213 x 225 x 68.0
		Raise orbit
1975 Feb 26	2315		89.13 217 x 245 x 68.0
		Raise orbit
1975 Feb 27	1835		89.33 235 x 247 x 68.0
1975 Mar 14	1809		88.85 211 x 224 x 68.0
		Raise orbit
1975 Mar 18	0522		89.25 228 x 246 x 68.0
1975 Apr 8	1114		88.41 190 x 201 x 68.0
		Raise orbit
1975 Apr 10	1158		88.74 198 x 226 x 68.0
1975 Apr 11	1009		88.67 196 x 220 x 68.0
		Raise orbit
1975 Apr 12	1251		89.01 220 x 231 x 68.0
1975 Apr 22	1540		88.56 197 x 209 x 68.0
		Raise orbit
1975 Apr 24	0747		89.34 231 x 252 x 68.0
		Raise orbit
1975 Apr 27	0744		90.14 264 x 298 x 68.0
1975 May 15	0811		90.01 258 x 290 x 68.0
1975 Jun 2			89.64 236 x 276 x 68.0
1975 Jun 8	0223		89.57 233 x 272 x 68.0
		Raise orbit
1975 Jun 14	0538		90.66 302 x 311 x 68.0
1975 Jul 6	0155		90.61 299 x 308 x 68.0
1975 Sep 18	2354		90.31 285 x 293 x 68.0
		Raise orbit
1975 Sep 19	0558		90.53 291 x 309 x 68.0
		Raise orbit
1975 Sep 20	1341		90.68 303 x 311 x 68.0
1975 Sep 23		Deactivated
1975 Dec 7	1644		90.24 283 x 288 x 68.0
		Raise orbit
1975 Dec 11	2142		90.76 305 x 317 x 68.0
1976 Feb 20		Reactivated
1976 Mar 8	1119		90.48 293 x 302 x 68.0
		Lower perigee
1976 Mar 9	2200		90.26 267 x 306 x 68.0
		Lower orbit
1976 Mar 11	2038		90.05 254 x 299 x 68.0
1976 Apr 20	1121		89.52 238 x 262 x 68.0
		Raise orbit
1976 Apr 21	2140		89.85 261 x 273 x 68.0
1976 Apr 26	0929		89.80 259 x 269 x 68.0
		Raise orbit
1976 Apr 26	2129		90.17 278 x 287 x 68.0
		Raise orbit
1976 Apr 30	0652		90.50 293 x 304 x 68.0
1976 Jul 15	0952		90.20 280 x 288 x 68.0
		Raise orbit
1976 Jul 23	1055		90.49 292 x 304 x 68.0
1976 Sep 28	0729		90.22 279 x 291 x 68.0
		Raise orbit
1976 Sep 29	1504		90.43 280 x 301 x 68.0
1977 Jan 1	1054		89.69 256 x 261 x 68.0
1977 Jan 22	1257		89.40 239 x 249 x 68.0
		Raise orbit
1977 Jan 26	0155		89.68 257 x 260 x 68.0
1977 Feb 8	0930		89.46 246 x 248 x 68.0
		Begin orbit raising burns
1977 Feb 10	0804		90.71 295 x 322 x 68.0
	2311		91.34 320 x 359 x 68.0
1977 Feb 11	2333		91.46 328 x 364 x 68.0
1977 Feb 14	0153		91.46 328 x 363 x 68.0
1977 Feb 15	0234		91.58 331 x 372 x 68.0
1977 Feb 17	1822		91.83 355 x 372 x 68.0
1977 Feb 24	1236		91.80 356 x 369 x 68.0
1977 Mar 1	1958		92.31 383 x 391 x 68.0
1977 Mar 12	0953		92.35 387 x 391 x 68.0
1977 Mar 18		Last orbital adjust?
		Orbit raising complete
1977 Aug 2	0126		92.24 383 x 385 x 68.0
1978 Feb 6	0901		91.96 366 x 374 x 68.0
1978 Mar 16	0701		91.82 361 x 366 x 68.0
1978 Mar 23	1805		81.80 359 x 365 x 68.0
1978 Aug 30	1900		91.01 320 x 327 x 68.0
1978 Nov 27	2013		89.27 238 x 238 x 68.0
1978 Dec 10	1022		88.02 175 x 177 x 67.9
1978 Dec 11		End of transmissions
1978 Dec 12		Reentered

Payload:

• CEP Cylindrical Electrostatic Probe (GSFC/Brace)

• MESA Accelerometer (AFCRL/Champion)

• PES Photoelectric Spectrometer (APL/Doering)

• RPA Retarding Potential Analyser (UTD/Hanson)

• ESUM Extreme Solar UV Monitor (GSFC/Heath), 40-1220A

• EUVS Extreme Solar UV spectrometer (AFCRL/Hinteregger), 140-1850A, 24 monochromators

• OSS Open Source Neutral Mass Spectrometer (UMn/Nier)

• NACE Neutral Atmosphere Composition Experiment (GSFC/UM/Nace)

• NATE Neutral Atmosphere Temperature Experiment (GSFC/UM/Spencer)

• MIMS Magnetic Ion Mass Spectrometer (UTD/Hoffman-J)

• BIMS Bennett Ion Mass Spectrometer (GSFC/Brinton)

• LEE Low Energy Electrons (GSFC/NOAA/Hoffman-R)

• UVNO UV Nitric Oxide Experiment (Colorado/Barth)

• VAE Visible Airglow Experiment (UM/Hays)