Encyclopedia Astronautica
Mayport DZ


Air-launched rocket drop zone known to have been used for 5 launches from 1993 to 2003, reaching up to 794 kilometers altitude.

Longitude: -78.5000 deg.
Latitude: 29.0000 deg.

More... - Chronology...


Associated Countries
Associated Spacecraft
  • CDS American communications technology satellite. One launch, 1993.02.09, Orbcomm OXP-1. Experimental spacecraft. More...
  • SCD Brazilian communications technology satellite. 3 launches, 1993.02.09 (SCD-1) to 1998.10.23 (SCD-2). Environmental data relay. More...
  • HESSI American solar satellite. One launch, 2002.02.05. HESSI, the sixth Small Explorer, was a Spectrum Astro satellite derived from the SA-200S design. It carried a rotating modulation collimator transform telescope. More...
  • SORCE American solar satellite. One launch, 2003.01.25. More...
  • Galex American ultraviolet astronomy satellite. One launch, 2003.04.28. The Galaxy Evolution Explorer (GALEX) was an orbiting space telescope that was to observe galaxies in ultraviolet wavelengths. More...

See also
  • Pegasus Privately-funded, air-launched winged light satellite launcher. More...

Associated Launch Vehicles
  • Pegasus American air-launched orbital launch vehicle. Privately-funded, air-launched winged light satellite launcher. More...
  • Pegasus XL American air-launched orbital launch vehicle. Uprated version of Pegasus air-launched winged light satellite launcher. 4 stage vehicle consisting of 1 x L-1011 + 1 x Pegasus XL stage 1 + 1 x Orion 50XL + 1 x Orion 38. More...
  • Pegasus H American air-launched orbital launch vehicle. Four stage vehicle consisting of 1 x L-1011 + 1 x Orion 50S + 1 x Orion 50 + 1 x Orion 38 More...

Associated Programs
  • Orbcomm Orbcomm was a commercial venture to provide global messaging services using a constellation of 26 low-Earth orbiting satellites. More...

Mayport DZ Chronology


1993 February 9 - . 14:30 GMT - . Launch Site: Mayport DZ. Launch Pad: 29.0 N x 78.3 W. Launch Platform: NB-52 008. LV Family: Pegasus. Launch Vehicle: Pegasus. LV Configuration: Pegasus 003/F3.
  • Orbcomm OXP-1 - . Payload: Orbcomm CDS. Mass: 15 kg (33 lb). Nation: USA. Agency: Orbcomm. Program: Orbcomm. Class: Communications. Type: Civilian communications satellite. Spacecraft: CDS. USAF Sat Cat: 22489 . COSPAR: 1993-009A. Apogee: 794 km (493 mi). Perigee: 731 km (454 mi). Inclination: 25.0000 deg. Period: 100.10 min. Summary: Experimental spacecraft. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .
  • SCD-1 - . Payload: SCD 1 / Orbcomm CDS. Mass: 115 kg (253 lb). Nation: Brazil. Agency: INPE. Class: Communications. Type: Civilian communications satellite. Spacecraft: SCD. USAF Sat Cat: 22490 . COSPAR: 1993-009B. Apogee: 793 km (492 mi). Perigee: 729 km (452 mi). Inclination: 25.0000 deg. Period: 100.10 min. Summary: Environmental data relay. The SCD-1 (Data Collection Satellite 1) was a Brazilian satellite designed for the collection of meteorological data relayed by data collection platforms spread throughout the Brazilian territory..

1998 October 23 - . 00:02 GMT - . Launch Site: Mayport DZ. Launch Pad: 29.0 N x 78.3 W. Launch Platform: L-1011. LV Family: Pegasus. Launch Vehicle: Pegasus H. LV Configuration: Pegasus H F24/P-33.
  • SCD-2 - . Mass: 110 kg (240 lb). Nation: Brazil. Agency: McLean. Manufacturer: INPE. Class: Communications. Type: Civilian communications satellite. Spacecraft: SCD. USAF Sat Cat: 25504 . COSPAR: 1998-060A. Apogee: 760 km (470 mi). Perigee: 736 km (457 mi). Inclination: 25.0000 deg. Period: 99.80 min. Brazil's SCD-2 satellite was aboard Orbital Science's L-1011 Stargazer aircraft when it took off from the Cape Canaveral Air Station's Skid Strip (Runway 02/20, 28.2N 80.6W) at 23:05 GMT on Oct 22 and flew to the drop zone near Cape Canaveral (in the Mayport, Florida, Warning Area) at 29.0N 78.3W. The Pegasus ignited 5 seconds after drop. The first stage carried a NASA experiment attached to its right wing, to study hypersonic boundary layer separation. The 115 kg Satelite de Coleta de Dados (Data Collection Satellite) relays data from environmental monitoring stations.

2002 February 5 - . 20:58 GMT - . Launch Site: Mayport DZ. Launch Pad: 29.0 N x 78.5 W. Launch Platform: L-1011. LV Family: Pegasus. Launch Vehicle: Pegasus XL. LV Configuration: Pegasus XL F31.
  • HESSI - . Payload: SA-200S. Mass: 449 kg (989 lb). Nation: USA. Agency: NASA. Manufacturer: Gilbert. Class: Astronomy. Type: Solar astronomy satellite. Spacecraft: HESSI. USAF Sat Cat: 27370 . COSPAR: 2002-004A. Apogee: 599 km (372 mi). Perigee: 574 km (356 mi). Inclination: 38.0000 deg. Period: 96.40 min. HESSI, the sixth Small Explorer, carried a rotating modulation collimator transform telescope, imaging solar flares in the hard X-ray spectrum. The launch marked the return to flight of Pegasus after the Hyper-X failure. The launch was originally to have occurred on 28 March 2001. The L-1011 launch aircraft took off at 19:29 GMT from the Cape Canaveral Skid Strip RW30/12, and headed out to the drop area at 28.0 N 78.5 W over the Atlantic. Drop of the Pegasus in the Atlantic Drop Zone at 28.0 N 78.5 W was at 20:58 GMT, with ignition 5 seconds later. The Pegasus reached orbit at 21:07 GMT. On the first pass it was confirmed that the solar panels had opened.

    The satellite rotated at 15 rpm, imaging by reconstructing the Fourier components from the time modulation of the solar x-ray flux through a set of 9 grids each 9 cm in diameter. It was expected to make images with a resolution of 2 arcseconds at 40 keV energies and 36 arcseconds at 1 MeV energies. The launch delays meant that HESSI missed some of the best flares at solar max.


2003 January 25 - . 20:13 GMT - . Launch Site: Mayport DZ. Launch Pad: 29.0 N x 78.5 W. LV Family: Pegasus. Launch Vehicle: Pegasus XL. LV Configuration: Pegasus XL F32.
  • SORCE - . Payload: Solstice/SAVE. Mass: 268 kg (590 lb). Nation: USA. Agency: NASA. Manufacturer: OSC. Class: Astronomy. Type: Solar astronomy satellite. Spacecraft: SORCE. USAF Sat Cat: 27651 . COSPAR: 2003-004A. Apogee: 657 km (408 mi). Perigee: 617 km (384 mi). Inclination: 39.9946 deg. Period: 97.31 min. Summary: Solar irradiance monitoring, climatology mission. Launch delayed from December 1 and 13, 2002..

2003 April 28 - . 12:00 GMT - . Launch Site: Mayport DZ. Launch Pad: 29.0 N x 78.5 W. LV Family: Pegasus. Launch Vehicle: Pegasus XL. LV Configuration: Pegasus XL F33.
  • Galex - . Mass: 280 kg (610 lb). Nation: USA. Agency: NASA. Manufacturer: OSC. Class: Astronomy. Type: Ultraviolet astronomy satellite. Spacecraft: Galex. USAF Sat Cat: 27783 . COSPAR: 2003-017A. Apogee: 699 km (434 mi). Perigee: 694 km (431 mi). Inclination: 29.0000 deg. Period: 98.70 min. Summary: Much delayed launch (from January 19, May 19, July 16, 21 and 30, August 14 and October 17, 2002; January 27, March 25 and 30, April 15 and 26 2003)..

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