This page no longer updated from 31 October 2001. Latest version can be found at www.astronautix.com
 |
| Delta 4925 - Delta 4925-8 no. 196 - COSPAR 1990-051 14,132 bytes. 160 x 494 pixels. |
|
Family: Delta. Country: USA. Status: Hardware.
SpecificationsLaunches: 2. Failures: 0. Success Rate: 100.00% pct. First Launch Date: 27 August 1989. Last Launch Date: 12 June 1990. LEO Payload: 3,400 kg. to: 185 km Orbit. Payload: 1,200 kg. to a: Geosynchronous transfer trajectory. Liftoff Thrust: 353,720 kgf. Total Mass: 200,740 kg. Core Diameter: 2.4 m. Total Length: 34.0 m. Flyaway Unit Cost $: 34.22 million. in 1985 unit dollars.
- Stage Number: 0. 9 x Castor 4A Gross Mass: 11,743 kg. Empty Mass: 1,529 kg. Thrust (vac): 48,774 kgf. Isp: 266 sec. Burn time: 56 sec. Isp(sl): 237 sec. Diameter: 1.0 m. Span: 1.0 m. Length: 9.1 m. Propellants: Solid No Engines: 1. TX-780
- Stage Number: 1. 1 x Delta Thor ELT Gross Mass: 84,067 kg. Empty Mass: 4,059 kg. Thrust (vac): 105,052 kgf. Isp: 296 sec. Burn time: 222 sec. Isp(sl): 262 sec. Diameter: 2.4 m. Span: 2.4 m. Length: 22.4 m. Propellants: Lox/Kerosene No Engines: 1. RS-27
- Stage Number: 2. 1 x Delta K Gross Mass: 6,954 kg. Empty Mass: 950 kg. Thrust (vac): 4,450 kgf. Isp: 319 sec. Burn time: 431 sec. Diameter: 1.7 m. Span: 2.4 m. Length: 5.9 m. Propellants: N2O4/Aerozine-50 No Engines: 1. AJ10-118K
Delta 4920 Chronology
1989 Aug 27 - - 23:02 GMT. LV Configuration: Delta 4925-8 / Delta s/n 187. Launch Site: Cape Canaveral . Launch Complex: LC17B.
- BSB-1A Spacecraft: HS 376. Payload: Marco Polo 1. Mass: 1,233 kg.
British DBS; 31 deg W. Direct broadcasting system. Expected operational life, 10 years. Owner/operator: British Satellite Broadcasting Ltd, The Marcopolo Building, Chelsea Bridge, Queenstown Rd, London SW8 4NQ.
1990 Jun 12 - - 05:52 GMT. LV Configuration: Delta 4925-8 / Delta s/n 196. Launch Site: Cape Canaveral . Launch Complex: LC17B.
- Insat-1D; Insat 1D Spacecraft: Insat 1. Payload: Insat 1D. Mass: 1,190 kg.
Also performed Indian domestic communications tasks; 83.1 E. Operational multi-purpose satellite for telecommunications, meteorological imaging and data relay, radio and television programme distribution and direct television broadcasting for community reception. Orbital position 83 deg E. Also registered as 1990-5 1A in ST/SG/SER.E/250 by the United States, with category B and orbital parameters 1426.3 min, 35768 x 35811 km x 0.2 deg.
Bibliography:- 42 - Isakowitz, Steven J,, International Reference to Space Launch Systems Second Edition, AIAA, Washington DC, 1991.
- 61 - Wilson, Andrew, editor,, Jane's/Interavia Space Directory, Jane's Information Group, Coulsdon, Surrey, 1992 et al.
Back to Index
Last update 12 March 2001.
Definitions of Technical Terms.
Contact Mark Wade with any corrections or comments.
Conditions for use of drawings, pictures, or other materials from this site..
© Mark Wade, 2001 .