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

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 Revised: Dec 07, 2022      OMOTENASHI / Spacecraft (Moon)                 -75
                 https://www.isas.jaxa.jp/home/omotenashi/index.html
https://directory.eoportal.org/web/eoportal/satellite-missions/content/-/article/equuleus-and-omotenashi

 NOTE: Communications with this spacecraft were unreliable after deployment. 
  It is believed the solar panels did not successfully point to the Sun. 
  Recovery attempts ended November 22 when JAXA determined it could not 
  perform the lunar mission. 

 BACKGROUND:
  The "Outstanding MOon exploration TEchnologies demonstrated by NAno Semi-Hard
   Impactor (OMOTENASHI), is a 6U Cubesat built by JAXA. It was carried with 
   the Orion EM-1 (Exploration Mission-1) into a heliocentric orbit in 
   cislunar space on the maiden flight of the NASA SLS (Space Launch System)

  The goal is to demonstrate a low-cost technology for semi-hard landing on 
   the Moon's surface after being deployed in a lunar fly-by orbit

  After deploying from SLS, OMOTENASHI will perform two deterministic maneuvers:

   DV1: will separate from the Orbiting Module (OM) and inject OMOTENASHI
        onto a Moon-impacting trajectory.

  After midcourse Trajectory Correction Maneuvers (TCMs) as needed ...

   DV2: a solid rocket motor will then be ignited shortly before lunar 
        collision, when moving at a speed of approximately 2.5 km/s. 

  After the deceleration maneuver (DV2), OMOTENASHI will free-fall from a low 
  altitude (~100 m) and arrive at the Moon surface with a speed of 20-30 m/s.

 SPACECRAFT PHYSICAL CHARACTERISTICS:
   * Dimensions          : 10.0 x 22.73 x 36.6 cm (6U CubeSat)
   * Orbiting Module (OM): 8.6 kg 
   * Surface Probe (SP)  : 0.7 kg (airbag)
   * Retro motor (RM)    : 4.4 kg (decelerates Surface Probe to surface)
   * Total mass          : 14 kg
   * Communications      : X-band, UHF (amateur radio accessible)

 SPACECRAFT TRAJECTORY:
  Post-launch reconstruction trajectory from JAXA.

  Trajectory name                         Start (TDB)        Stop (TDB)
  -------------------------------     -----------------  -----------------
  20221116_0155_0100_V0.1             2022-Nov-16 10:33  2023-Mar-31 23:59
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No ephemeris for target "OMOTENASHI (spacecraft)" after A.D. 2023-APR-01 00:00:00.0000 UT