Pegasus Rocket Launch

Keith Stein (kstein@erols.com)
Thu, 02 Dec 1999 10:41:47 -0500

Pegasus Rocket Launch
=====================

An Orbital Sciences Corp. Pegasus rocket is scheduled for launch from the
fuselage of an L-1011 aircraft Saturday, December 4, around 1851Z (1:51
p.m. EST). The launch will take place approximately 100 miles off the coast
of Virginia. The L-1011 will depart from NASA's Wallops Flight Facility
(airport ID KWAL) approximately one hour before launch (1751Z, or 12:51
p.m. EST).

If you are in the local Washington, D.C. area, or even closer to Wallops
Flight Facility on the eastern shore, you can monitor the launch on 121.950
MHz.

Possible call signs to listen for;

Orbital 1 (L-1011 aircraft)
NASA511 (T-38 chase plane, from NASA Langley Research Center, VA)
NASA846 (F/A-18 chase plane, from Dryden Flight Research Center, Calif.)

Other frequencies to monitor for possible launch support;

121.700  PATUXENT; CLNC DEL
121.950  NASA RANGE SURVEILLANCE AIRCRAFT
123.400  NASA RANGE SURVEILLANCE AIRCRAFT
126.500  WALLOPS TWR
127.950  PATUXENT APP/DEP CON
132.550  WASHINGTON CENTER
134.100  PATUXENT APP/DEP CON
156.600  NASA CONTROL/U.S. COAST GUARD
164.700  NASA RANGE SAFETY
170.350  NASA SECURITY
170.400  NASA PAGING SYSTEM
171.000  NASA SECURITY
311.200  (AM) NASA AIRCRAFT OPERATIONS
314.000  (AM) PATUXENT APP/DEP CON
353.600  (AM) WASHINGTON CENTER
394.300  (AM) WALLOPS TWR

NOTAM released for launch area over Altantic Ocean;

CARF NR 1305 ON PEGASUS LAUNCH STATIONARY RESERVATION WITHIN AN AREA BNDD BY
3750N 7257W 3750N 7210W 3700N 7210W 3700N 7257W; WITHIN AN AREA BNDD BY 3521N
6639W 3453N 6450W 3355N 6419W 3334N 6427W 3317N 6507W 3346N 6658W 3438N 6729W
3502N 6720W; WITHIN AN AREA BNDD BY 3329N 6156W 3254N 5944W 3119N 5855W 3034N
5914W 3002N 6027W 3042N 6249W 3157N 6332W 3256N 6310W; ADDITIONAL AREA FOR
INFORMATION ONLY: WI AN AREA BNDD BY 1720N 4222W 1608N 3841W 1405N 3751W 1331N
3804W 1300N 3908W 1415N 4247W 1612N 4340W 1648N 4327W SFC-UNL 04 DEC 18:30 TIL
04 DEC 19:45

CARF NR. 1306 ON PEGASUS LAUNCH STATIONARY RESERVATION WITHIN AN AREA BNDD BY
3750N 7257W 3750N 7210W 3700N 7210W 3700N 7257W WITHIN AN AREA BNDD BY 3521N
6639W 3453N 6450W 3355N 6419W 3334N 6427W 3317N 6507W 3346N 6658W 3438N 6729W
3502N 6720W WITHIN AN AREA BNDD BY 3329N 6156W 3254N 5944W 3119N 5855W 3034N
5914W 3002N 6027W 3042N 6249W 3157N 6332W 3256N 6310W ADDITIONAL AREA FOR
INFORMATION ONLY: WITHIN AN AREA BNDD BY 1720N 4222W 1608N 3841W 1405N 3751W
1331N 3804W 1300N 3908W 1415N 4247W 1612N 4340W 1648N 4327W SFC-UNL 05 DEC
18:15 TIL 05 DEC 19:15

The Pegasus rocket will be carrying eight Orbcomm communication satellites
into low earth orbit.

ORBCOMM/PEGASUS ROCKET FREQUENCIES
TRANSMITTING FREQUENCY   POWER   REMARKS
137.0 TO 138.0 MHZ       5   W   ORBCOMM TELEMETRY
400.1 MHZ                1   W   ORBCOMM DOPPLER BEACON
2288.5 MHZ               5   W   PEGASUS TELEMETRY
5765.0 MHZ             400   W   PEGASUS TRACKING TRANSPONDER

SEQUENCE OF EVENTS

EVENT                          HH:MM:SS

DROP                           00:00:00
STAGE 1 IGNITION               00:00:05
STAGE 1 BURNOUT                00:01:15
STAGE 1 SEPARATION             00:01:30
STAGE 2 IGNITION               00:01:31
FAIRING EJECTION               00:02:00
STAGE 2 BURNOUT                00:02:44
STAGE 2 SEPARATION             00:07:27
STAGE 3 IGNITION               00:07:38
STAGE 3 BURNOUT                00:08:46
STAGE 3 SEPARATION             00:09:46
HAPS 1  IGNITION               00:09:47
HAPS 1  CUTOFF                 00:10:23
HAPS 2  IGNITON                00:50:41
HAPS 2  CUTOFF                 00:52:59
PAYLOAD SEPARATION (FM30)      00:53:19
PAYLOAD SEPARATION (FM31)      00;55:19
PAYLOAD SEPARATION (FM32)      00:57:19
PAYLOAD SEPARATION (FM33)      00:59:19
PAYLOAD SEPARATION (FM34)      01:01:19
PAYLOAD SEPARATION (FM35)      01:03:19
PAYLOAD SEPARATION (FM36)      01:05:11
HAPS DEP BURN IGNITION         01:07:19
HAPS DEP BURN CUTOFF           01:11:19
DEPLOY SOLAR ARRAYS            SEPARATION + 30 SEC
DEPLOY ANTENNA                 SEPARATION + 90 SEC
TRANSMISSION BEGINS            SEPARATION + 120 SEC


NOMINAL ORBITS
                                    STAGE 3 SEP      P/L SEP
EPOCH (D/HH:MM:SS.SSS):             338/18:55:46.000 338/19:38:59.000
PERIOD (MIN):                       95.340           101.410
INCLINATION (DEG):                  45.011           45.020
ECCENTRICITY (DEG):                 0.020560         0.000040
SEMI-MAJOR AXIS (KM):               6913.1674        7203.5653
ARGUMENT OF PERIGEE (DEG):          103.760          270.770
RA OF ASCENDING NODE (DEG):         153.720          153.530
MEAN ANOMALY (DEG):                 39.380           32.760
START ORBIT TIME (HHH:MM:SS.SSS)MET:000:09:46.000    000:52:59.000
END ORBIT TIME (HHH:MM:SS.SSS)MET:  000:52:59.000    001:52:59.000
HEIGHT (KM):                        424.8088         834.4695
INJECTION LATITUDE (DEG):           24.22N           36.304S
INJECTION LONGITUDE (DEG):          310.06E          98.697E
INJECTION INERTIAL AZIMUTH (DEG):   129.255          61.093
INJECTION TIME (D/HH:MM:SS.SSS):    338/18:55:46.000 338/19:38:59.000

                                    HAPS DEPLETION
EPOCH (D/HH:MM:SS.SSS):             338/19:57:04.000
PERIOD (MIN):                       97.480
INCLINATION (DEG):                  41.770
ECCENTRICITY (DEG):                 0.026510
SEMI-MAJOR AXIS (KM):               7016.2328
ARGUMENT OF PERIGEE (DEG):          179.240
RA OF ASCENDING NODE (DEG):         153.430
MEAN ANOMALY (DEG):                 188.950
START ORBIT TIME (HHH:MM:SS.SSS)MET:001:11:04.000
END ORBIT TIME (HHH:MM:SS.SSS)MET:  002:11:04.000
HEIGHT (KM):                        818.8888
INJECTION LATITUDE (DEG):           5.11N
INJECTION LONGITUDE (DEG):          146.69E
INJECTION INERTIAL AZIMUTH (DEG):   48.466
INJECTION TIME (D/HH:MM:SS.SSS):    338/19:57:04.000

Keith Stein, Editor (kstein@kingpublishing.com)
Military Space (http://MilitarySpace.com/archives/currentissues.html)

King Publishing Group
627 National Press Building
Washington, DC 20045
(202) 662-9748 (phone)
(202) 662-9744 (fax)

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