Ariel 1

  1962-015A

---

The UK 1 satellite was built by NASA-GSFC for the British National Committee on Space Research and the Dept. of Science and Industrial Research. The spacecraft structure was made by Washington Technical Associates. NASA designated the payload S-51. It was named Ariel after launch from Cape Canaveral in Apr 1962 and was billed as the first international satellite.

Ariel 1
Date	Time	Event	Orbit
1962 Apr 26	1800:16	Launch by Delta DM19	CC LC17A
	1802:55	Thor MECO
	1802:55	Thor sep
	1803:00	Delta 2018 SES 1:37
	1803:29	Fairing
	1804:38	Delta SECO	-3234 x 392 x 35?
	1810:55	Spin
	1811:10	Delta sep
	1811:10	Altair X-248-A5 burn
	1811:52	Altair burnout
	1812:54	Despin 1 (yo-yo)
	1814:14	Despin 2
	1828:30	Altair sep	389 x 1214 x 53.9
1962 Jul 9			393 x 1209 x 54
1962 Jul 12		ops intermittent
1964 Jul 1		ops suspended
1964 Aug 26		ops resumed
1964 Nov 9		End of operations
1976 May 24	2130	Reentered

Intelsat 307

  1970-032A

---

The F-7 satellite was Atlantic Primary for two years, but failed in 1972. It appears to have been relocated to 3W in mid-1971. The orbit was low after the third stage burn and after apogee firing the altitude was made up with RCS burns. One transponder failed after 22 months in orbit.It seems that the first stage underperformed, but that the launch was still counted a success. D. Baker says that Intelsat quarterly operations reports show it still active to circa 1986.

Intelsat III F-7
Date	Time	Event	Orbit
1970 Apr 23	0046:12	Launch by Delta M	CK LC17A
		SRM 1-3 burn
	0049:48	T+3:36 MECO
	0049:54?	St 1 sep
	0049:54?	SES-1 6:25
	0056:19?	SECO-1
	0110?	St 2 sep
	0111?	TES
	0111?	TECO
	0113?	St 3 sep	261 x 31932 x 27.1
1970 Apr 23	0530?	Apo 1 105E
	1500?	Apo 2 37W
1970 Apr 24	0030?	Apo 3 174W
	0930?	Apo 4 45E
	1900?	Apo 5 97W
		RCS burns raise apogee
1970 Apr 24	2019	SVM-2 burn	31935 x 35604 x 2.0
		RCS burns raise perigee
1970 May 1		AOR Primary, replaced III F-2	GEO 19W
1970 May 4			1436.17 35770 x 35805 x 0.2 GEO 19.2W
1970 Jul 7			1436.18 35759 x 35817 x 0.1 GEO 19.4W
1970 Jul 20			1436.10 35773 x 35800 x 0.1 GEO 21.4W
1971 Mar 1			1436.13 35772 x 35801 x 0.1 GEO 20.6W
1971 Apr 12		mv out	1434.56 35722 x 35791 x 0.7 GEO 18.5W+0.4
1971 May 25		mv in	1435.98 35776 x 35792 x 0.9 GEO 2.7W+0.02
1972 Mar		Inactive?
1972 May		Replaced by IV F-3
1972 May		Moved to IOR backup?
1986?		End of transmissions?