Saturday, October 25, 2014

OCO-2

 2014-035A


Replacement Orbiting Carbon Observatory to monitor atmospheric CO2 to 0.3 percent accuracy on 1000 km scales; to fly in the A-Train (leading GCOM-W1 by 185s and leading Aqua by 444.5s).

Hex cyl 2.12m long 0.94m wide, mass 454 kg wet. 45 kg of prop. Span 7.4m?


OCO 2 
 

DateTimeEventOrbit  

2014 Jul 2  0956:23 Launch by Delta 7320-10 V SLC2W 
  T+1:39 SRM 1-3 sep 
 T+4:24 MECO 
  T+4:32 St 1 sep 
  T+4:38 SES-1 
 1001:24 T+5:01 PLF sep 
 1006:43 T+10:20 SECO-1  185 x 726 x 98.1 
 1047:13 T+50:50 SES-2 
 1047:25 T+51:02 SECO-2  680 x 696 x 98.2 
 1052:38 T+56:15 OCO sep 
 1121:23 T+1:25:00 SES-3 
  T+1:25:38 SECO-3  604 x 3743 x 98.2 
 1153 T+1:56:40 SES-4 
 1153 T+1:57:31 SECO-4  2380 x 10336 x 98.2 (s) 
   253.59 2375 x 10139 x 98.2 
2014 Jul 3    98.45 687 x 690 x 98.2 
2014 Jul 10    98.54 686 x 691 x 98.2 
2014 Jul 11    98.48 682 x 689 x 98.2 
2014 Jul 25    98.48 683 x 689 x 98.2 
2014 Jul 30    98.64 693 x 693 x 98.2 
  Raise orbit 
2014 Aug 3    98.83 701 x 703 x 98.2 
2014 Aug 27    98.83 701 x 703 x 98.2 

Payload:

  • CO2/O2 spectrometer (JPL;Hamilton Sunstrand/Pomona) 135 kg; 3 bands (2 CO2, 1 O2); f/1.8 Cassegrain optics, R=20000. Bands are 1.61 mu, 2.06mu (CO2) and 0.765mu (O2).

Spaceflight: May 2014

 https://welib.org/md5/6a2d876cdbb70acd11010bbd0eb894f8

The Big Dance

https://broomheadz.com/2014/10/06/alexa-pappadopolos-fashion-1-2-1/



















Thursday, October 23, 2014

Apstar 2

 1997-062A


Apstar 2R is an FS-1300 to be launched by LM-3B. In 1999, Loral Skynet leased the entire capacity of the satellite to replace its failed Orion 3 satellite; the successor company Telesat ended the lease in 2009.

Size 31 m span, 8.6m x 9.3m deployed. Mass 3747 kg at launch.

The CZ-3B stage second burn was about 2.6km/s, requiring a mass ratio of 1.83 and the post-burn mass was around 6750 kg including payload assuming 200 kg residual fuel. This implies a propellant usage of 5600 kg.

The satellite is also known as Apstar 4 and Telstar 10.


Apstar 2
 

DateTimeEventOrbit  

1997 Oct 16  1913  Launch by CZ-3B 
  T+2:07 Booster sep 
  T+2:27 St 1 sep 
  T+3:52 Fairing 
  T+5:32 St 2 sep 
  T+5:32 St 3 MES-1 
 1923 T+10:31 MECO-1  160? x 450? x 28.5? 
 1934 T+21:21 MES-2 
 1937 T+24:20 MECO-2 
  T+26:00 Stage 3 sep 
1997 Oct 16    874.39 167 x 37656 x 24.6 
1997 Oct 18  0800? LAM1 
1997 Oct 18    1150.56 12347 x 47640 x 6.8 
1997 Oct 19  0330? LAM2 
1997 Oct 19    1707.45 34275 x 47611 x 0.1 
1997 Oct 21   LAM3? 
1997 Oct 24    1437.25 35709 x 35908 x 0.1 GEO 76.2E+0.3W 
1997 Nov 6    1436.10 35775 x 35797 x 0.1 GEO 76.5E 
1999 Oct 16    1436.10 35773 x 35799 x 0.0 GEO 76.5E 
1999   Leased by Loral Orion 
1999 Nov 17   Renamed Telstar 10 
2006 Aug 3    1436.08 35771 x 35801 x 0.0 GEO 76.5E 
2012 Oct 18    1436.10 35754 x 35819 x 0.4 GEO 76.3E 

May 13,2026

  https://planet4589.org/space/jsr/back/news.855.txt