{"signature":{"source":"NASA/JPL Horizons API","version":"1.2"},"result":"******************************************************************************\n Revised: Oct 18, 2026                  Hera / (Sun)                       -91  \n               https://www.dlr.de/en/ar/topics-missions/space-safety/hera\n                 https://esamultimedia.esa.int/docs/HERA_Launch_Kit.pdf\n \n Launch Date:                                            Didymos Arrival Date:\n  2024-Oct-07 14:52 UTC                             \t     Late 2026        \n\n Launch Vehicle:                                         Launch Site:\n  SpaceX Falcon 9                                         Cape Canaveral, SFS\n\n MILESTONES\n   2024-Nov   : DSM-1\n   2025-Mar   : Mars flyby (~6000 km from Mars, ~1000 km from Deimos) \n   2026-Feb   : DSM-2\n   2026-Oct   : Rendevous maneuver\n   Late 2026  : Didymos/Dimorphos system arrival\n\n OBJECTIVES:\n  Assess the size and depth of the crater on the 151-m diameter asteroidal moon\n  Dimorphos, created by NASA's DART (Double Asteroid Redirection Test) \n  spacecraft 2022-Sep-26, and determine whether the impact reshaped the rubble\n  pile object that orbits 65803 Didymos at a distance of 1.1 km every 11h 22m, \n  as preliminary results indicate.\n\n  Once deployed, two CubeSats (\"Milani\" and \"Juventas\") will be used to assess \n  Dimorphos' internal structure, surface minerals, as well as gravity. The data\n  will help correctly reproduce the asteroid's final structure and inform \n  future planetary defense missions.\n \n SPACECRAFT PHYSICAL PROPERTIES:\n  1.6 x 1.6 x 1.7 m box\n  Two 5-m solar panel arms (deployed)\n  1801 kg fully fueled (hydrazine bipropellant)\n  3-axis stabilization \n    4 reaction wheels, gyroscopes, star trackers, solar sensors\n\n SPACECRAFT TRAJECTORY: \n  Post-launch tracking-data based trajectory from ESA 2026-Oct-17. Prediction \n  thereafter.\n\n  NOTE: To generate ephemerides of destination asteroid Didymos as a target, \n  look-up with integer code \"20065803\" (pre-computed) or \"DES=20065803;\"\n  (numerically integrate with uncertainties).\n\n  To instead use asteroid Didymos as an observing point (produce ephemerides \n  relative TO Didymos), set the coordinate center to \"@ 20065803\".\n\n  Similarly for satellite Dimorphos, use object code is \"120065803\", though\n  a numeric integration option is not available here for that object.\n\n   Name                                    Start (TDB)          Stop (TDB)\n   --------------------------------------- -----------------  -----------------\n   hera_fcp_000099_241007_261104_v01       2024-Oct-07 16:10  2026-Nov-04 01:00\n*******************************************************************************\n"}