Saturday, January 19, 2002

SDS 2

 1976-080A


SDS 2 was launched two months after the first SDS mission.


SDS 2 
 

DateTimeEventOrbit  

1976 Aug 6  2221  Launch by Titan 34B Agena D  V SLC4W 
 2223  Stage 2 burn 
 2226?  Stage 2 MECO 
 2228?  Agena MES-1 
 2231? Agena MECO-1  180? x 370? x 63 
 2257? MES-2 
 2259? MECO-2 
 2300? Agena sep 702.0 350 x 39224 x 62.5 

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Friday, January 18, 2002

Intelsat 704

 1995-001A


The fourth Intelsat 7 class satellite took off on 1995 Jan 10 from Cape Canaveral aboard an Atlas IIAS. It entered a 737.15 min, 306 x 40999 km x 26.4 deg transfer orbit.


Intelsat 704 
 

DateTimeEventOrbit  

1995 Jan 10  0618  Launch by Atlas IIAS 
 0619 SRB 1-2 sep 
 0619  SRB 3-4 sep 
 0620  BECO 
 0620  Booster sep 
 0621  Fairing sep 
 0622  MECO 
 0622  Atlas sep 
 0623  Centaur MES1 
 0628  Centaur MECO1   
 0642? Centaur MES2 
 0644?  Centaur MECO2 
 0646?  Centaur sep   
1995 Jan 10    735.97 189 x 41058 x 26.3 
1995 Jan 11  0630? LAM-1 786.48 1353 x 42338 x 23.4 
1995 Jan 11  2211? LAM-2 817.41 4033 x 41128 x 15.7 
1995 Jan 12  1647? LAM-3 1096.24 16563 x 41116 x 4.7 
1995 Jan 13  1100? LAM-4 1573.24 35772 x 41087 x 0.2 
1995 Jan 15  0230? LAM-5 
1995 Jan 15   1466.58 35787 x 36974 x 0.2 (?) 
1995 Jan 15    1449.63 35789 x 36312 x 0.1 GEO 59.0E+3.4W 
1995 Jan 16    1436.87 35789 x 35813 x 0.0 GEO 56.1E+0.2W 
1995 Feb 27    1436.36 35713 x 35869 x 0.1 GEO 66.0E 
1995 Nov 8    1436.08 35779 x 35793 x 0.0 GEO 66.0E 
1997 Oct 20    1436.08 35765 x 35807 x 0.0 GEO 66.0E 
1999 Oct 15    1436.07 35770 x 35801 x 0.0 GEO 66.1E 

Wednesday, January 16, 2002

VEP-2

2001-038B


The first H-IIA was launched from Launch Pad 1 at TNSC in Aug 2001.

VEP-2 is a cone-shaped set of Al disks on top of the H2A second stage, modelling the mass of Artemis (which was pulled from the flight at a late stage). The DRE is mounted on it. Doppler Ranging experiment is box about 0.5 x 0.4m. VEP is about 3.0m dia 0.8 high. Mass is 3100 kg.

The H-IIA stage 2 carried out a chill down experiment an hour after launch to prove capabilities for 3-burn missions.


VEP-2 
 

DateTimeEventOrbit  

2001 Aug 29 0700:00 Launch by H-IIA202  TNSC Y LP1 
  T+1:40 SRB-A 1-2 burnout 
  T+1:51 SRB-A 1-2 sep 56 km 1.6 km/s 
  T+4:20 Fairing sep 141 km 2.7 km/s 
 0706 T+6:41 MECO 
  T+6:49 St 1 sep 236 km 5.2 km/s 
  T+6:55 SEIG-1 354s 
 0712 T+12:49 SECO-1  303 x 305? x 28.1  
  T+24:58 SEIG-2 183s 
 0727  T+28:02 SECO-2  279 x 36209 x 28.1 
 0739  T+39:47 LRE sep 
 0850? Chilldown experiment 

Monday, January 14, 2002

Echo 1

  1960-009A


A-11 was launched on 1960 Aug 12. This time the Delta and the Altair third stage worked well, and inserted a magnesium canister into a 1524 x 1684 km x 47.2 deg orbit. Two minutes after orbit insertion, the canister was blown open and the A-11 balloon was inflated; it was renamed Echo I. A-11 had two 107 MHz radio beacons to aid initial tracking, but was otherwise entirely passive once inflated. The communications tests were successful; the balloon remained pressurized until Jan 1961. It remained in orbit until 1968 May 24; in the meanwhile solar radiation pressure caused wide variations in its orbital parameters, as the table below illustrates. While the period remained roughly constant, the eccentricity oscillated between low and high values.


Echo 1 
 

DateTimeEventOrbit  

1960 Aug 12  0939:42  Launch by Delta  CC LC17A 
 0942:21 T+2:39 MECO 
 0942  Thor sep 
 0942 Stage 2 burn 1:49 
 0944:17 SECO T+4:35 
  15 min coast 
 0958? Stage 2 (S/N 2012) sep  -4440? x 1517? x 47.3 
 0959 Altair burn  
 1000  Altair (S/N 3012) sep 
  Canister open 
 1001? Inflation 
1960 Aug 12    118.23 1517 x 1684 x 47.2 
1960 Aug 24  0923  First shadow entry 
1960 Sep 14    118.19 1448 x 1750 x 47.2 
1960 Nov 22    117.63 1143 x 2005 x 47.3 
1961 Jan 4    117.15 965 x 2140 x 47.3 
1961 Jan 16   Loss of pressure 
1961 Jan 22    117.16 1004 x 2102 x 47.3 
1961 Mar 24    117.14 1129 x 1975 x 47.3 
1961 May 30    117.11 1408 x 1693 x 47.3 
1961 Sep 28    116.74 1193 x 1875 x 47.2 
1961 Dec 10    116.23 905 x 2117 x 47.3 
1962 Jan 31    116.28 1059 x 1967 x 47.3 
1962 May 11    116.29 1503 x 1523 x 47.2 
1962 Nov 14    115.50 947 x 2008 x 47.2 
1963 Mar 31    115.52 1448 x 1509 x 47.2 
1963 Sep 11    114.92 971 x 1931 x 47.2 
1964 Feb 18    114.79 1408 x 1483 x 47.2 
1964 Aug 7    114.14 918 x 1913 x 47.2 
1965 Jan 3    114.12 1363 x 1467 x 47.2 
1965 May 20    113.58 945 x 1836 x 47.2 
1965 Jul 1    113.43 876 x 1891 x 47.2 
1965 Nov 29    113.47 1322 x 1448 x 47.2 
1966 May 22    112.66 879 x 1817 x 47.2 
1966 Nov 5    112.33 1159 x 1507 x 47.3 
1967 Mar 4    111.25 850 x 1718 x 47.3 
1967 Aug 18    109.99 1152 x 1300 x 47.3 
1968 Jan 6    107.13 719 x 1468 x 47.3 
1968 Feb 24    104.36 761 x 1168 x 47.3 
1968 May 10    99.30 665 x 785 x 47.2 
1968 May 23    92.70 394 x 419 x 47.2 
1968 May 24   Reentered 

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