API VERSION: 1.2
API SOURCE: NASA/JPL Horizons API

*******************************************************************************
 Revised: Sep 05, 2023         EQUULEUS Spacecraft / (Moon)                -101
                     https://www.space.t.u-tokyo.ac.jp/equuleus/en/

 OVERVIEW:
  EQUULEUS "(EQUilibriUm Lunar-Earth point 6U Spacecraft)". This JAXA CubeSat 
  launched from Cape Canaveral on the SLS with Artemis I on November 16, 2022
  at 06:47 UTC. It was then released to begin a lunar flyby sequence over a 
  period of 1 to 3 months, followed by maneuvers exploiting Earth-Sun-Moon 
  dynamics over 5 months. 

  This will bring it to a libration orbit around the Earth-Moon L2 Lagrange 
  point using minimal propellant. Observations will be made from this position 
  for about 1 month before the mission ends.

 OBJECTIVES:
  * Observe the Earth's plasmasphere in the ultraviolet band 
  * Characterize the dust environment in cislunar space
  * Record lunar impact flashes 

 SPACECRAFT:
  Dimensions: 6U cubesat (10 x 20 x 30 cm) 
  Mass      : 11.5 kg 
  Power     : 50 W @ 1 AU, from two deployable solar arrays and batteries 

  Propulsion and attitude control:
   * Warm gas propulsion with water as the propellant ("steam-powered"?)
   * 8 water thrusters, with a planned thrust of 3.3 mN and Isp of 70 seconds
   * Total mass of water propelled is 1.22 kg, providing total delta-v of 77 m/s

  Communications: 
    X-band transponder with one medium-gain & one large-gain antenna 

 INSTRUMENTS:
  PHOENIX .... extreme ultraviolet imager; 
  CLOTH ...... dust detector 
  DELPHINUS .. camera designed to detect impact flashes.

 TRAJECTORY:
  Approximately weekly tracking data tag-up through Aug 24.
  Predicts thereafter.

 Trajectory name                                     Start          Stop
 -----------------------------------------------   -----------   -----------
 EQUL_Nov16_open_LP281116o_0020911033_V0.1         2022-Nov-16   2022-Nov-23
 EQUULEUS concatenated 20221123 - 20231231         2022-Nov-23   2023-Dec 31 
******************************************************************************

No ephemeris for target "EQUULEUS (spacecraft)" after A.D. 2023-DEC-30 23:58:50.8161 UT