LAUNCH INFORMATION
NAME: PEGASUS/HESSI
LAUNCH AGENCY: ORBITAL SCIENCES CORPORATION
LAUNCH SITE: CCAFS, DROP POINT 28.0N, 281.5E
LAUNCH AZIMUTH: 073.7 DEG
LAUNCH WINDOW: 07 JUN 01 1400Z TO 07 JUN 01 1500Z (1405Z NOMINAL)
LAUNCH VEHICLE: PEGASUS XL
NOMINAL ORBITS
PAYLOAD SEPARATION
EPOCH (D/HH:MM:SS.SSS): 158/14:14:42.400
PERIOD (MIN): 96.7
INCLINATION (DEG): 37.99
ECCENTRICITY (DEG): 0.0005
SEMI-MAJOR AXIS (KM): 6977.180
ARGUMENT OF PERIGEE (DEG): 102.4
RA OF ASCENDING NODE (DEG): 352.8
MEAN ANOMALY (DEG): 325.55
START ORBIT TIME (HHH:MM:SS.SSS)MET:000:09:42.400
END ORBIT TIME (HHH:MM:SS.SSS)MET: 003:15:00.000
HEIGHT (KM): 602.8
INJECTION LATITUDE (DEG): 34.965N
INJECTION LONGITUDE (DEG): 305.927E
INJECTION INERTIAL AZIMUTH (DEG): 73.68
INJECTION TIME (D/HH:MM:SS.SSS): 158/14:14:42.400
SEQUENCE OF EVENTS
DROP TO INJECTION:
EVENT DESCRIPTION: MET(HH:MM:SS.SS)
DROP 00:00:00.00
STAGE 1 IGNITION 00:00:05.00
STAGE 1 BURNOUT 00:01:14.92
STAGE 2 IGNITION 00:01:31.40
FAIRING SEPARATION 00:02:06.52
STAGE 2 BURNOUT 00:02:43.52
STAGE 3 IGNITION 00:07:34.64
STAGE 3 BURNOUT 00:08:42.52
HESSI SEPARATION 00:09:42.40
ACTIVE LIFE:
NOMINAL OPERATIONAL LIFE IS TWO YEARS
GENERAL INFORMATION
OBJECTS TO ACHIEVE ORBIT:
TWO OBJECTS WILL ACHIEVE ORBIT; THE HESSI SPACECRAFT AND THE PEGASUS XL
THIRD STAGE.
A. THE HESSI SPACECRAFT IN STOWED CONFIGURATION IS APPROXIMATELY
24 INCHES BY 24 INCHES BY 72 INCHES HIGH. THE SPACECRAFT MASS IS
646 POUNDS. IT IS SPIN STABILIZED AT 15 RPM. IT'S GENERAL GEOMETRY
IS A CYLINDER ORIENTED ALONG THE SPIN AXIS AND FOUR SOLAR WINGS
PERPENDICULAR TO THE SPIN AXIS.
B. THE PEGASUS XL 3RD STAGE ROCKET BODY IS APPROXIMATELY 52.7 INCHES
IN LENGTH AND 38.0 INCHES IN DIAMETER (CYLINDRICAL) WITH A MASS OF
446 LBS AND IS NOT STABILIZED.
LAUNCH VEHICLE DESCRIPTION:
THE PEGASUS XL IS A 3 STAGE SOLID ROCKET MOTOR VEHICLE DROPPED FROM A
LOCKHEED L-1011 AIRCRAFT. THE OVERALL LENGTH IS 16.895 M, DIAMETER OF
1.3 M, AND A MASS OF 22816.08 KG. THE THREE PEGASUS ROCKET MOTORS
ARE HTPB 88 PERCENT CLASS 1.3 PROPELLANT. THE THIRD STAGE CONTAINS
A REACTION CONTROL SYSTEM PROPELLED BY 2000 PSI NITROGEN WITH 2 COLD
GAS ROCKET ENGINE MODULES CONSISTING OF THREE THRUSTERS EACH.
MISSION NARRATIVE:
THE HIGH ENERGY SOLAR SPECTROSCOPIC IMAGER (HESSI) IS PART OF NASA'S
SMALL EXPLORER (SMEX) SERIES. HESSI WILL INVESTIGATE THE PHYSICS OF
PARTICLE ACCELERATION AND ENERGY RELEASE IN SOLAR FLARES, OBSERVING
X-RAY AND GAMMA RAY EMISSIONS WITH HIGH RESOLUTION IMAGING AND
SPECTROSCOPY.
COMMUNICATIONS FREQUENCIES
FREQUENCY; POWER; REMARKS;
2215.0 MHZ 5 WATTS HESSI TELEMETRY
2269.5 MHZ 5 WATTS PEGASUS INSTRUMENT SUB SYSTEM
2288.5 MHZ 5 WATTS PEGASUS TELEMETRY
5765.0 MHZ 400 WATTS PEGASUS C-BAND DOWNLINK
OBJECT DESIGNATIONS:
INT
OBJECT COMMON NAME DSG CTY
PAYLOAD HESSI A US
ROCKET BODY PEGASUS R/B B US
SpaceCluster.Com
Woodbridge, VA 22192
http://www.spacecluster.com
-----------------------------------------------------------------
Unsubscribe from SeeSat-L by sending a message with 'unsubscribe'
in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org
http://www2.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Tue Jun 05 2001 - 10:45:35 PDT