{
 "schema": "smd-apophis-2029-pass.v1",
 "note": "Generated by scripts/build_apophis_pass.py from the captures named in sources, each checked against its SHA-256; never edited by hand. Figures are JPL's predictions from orbit solution 220; times are TDB. The km figures in close_approach are JPL's au converted at km_per_au.",
 "km_per_au": 149597870.7,
 "close_approach": {
  "object": "99942 Apophis (2004 MN4)",
  "orbit_id": "220",
  "time_tdb": "2029-Apr-13 21:46",
  "jd_tdb": "2462240.407091969",
  "dist_au": "0.000254090910419299",
  "dist_min_au": "0.000254068999976389",
  "dist_max_au": "0.000254112821017663",
  "v_rel_km_s": "7.42253895678452",
  "dist_km": 38011,
  "dist_min_km": 38008,
  "dist_max_km": 38015
 },
 "vectors": {
  "object": "99942 Apophis (2004 MN4) {source: JPL#220}",
  "centre": "Earth (399) {source: DE441}",
  "centre_site": "BODY CENTER",
  "frame": "ICRF",
  "time_scale": "TDB",
  "start_tdb": "2029-04-11T00:00",
  "step_minutes": 30,
  "first_jd_tdb": "2462237.500000000",
  "earth_radii_km": [
   6378.137,
   6378.137,
   6356.752
  ],
  "columns": [
   "x_km",
   "y_km",
   "z_km",
   "vx_km_s",
   "vy_km_s",
   "vz_km_s"
  ],
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 },
 "sources": [
  {
   "id": "cad",
   "publisher": "NASA/JPL",
   "title": "SBDB Close Approach Data API: 99942 Apophis in 2029",
   "url": "https://ssd-api.jpl.nasa.gov/cad.api?des=99942&date-min=2029-01-01&date-max=2029-12-31&dist-max=0.05&fullname=true",
   "retrieved": "2026-11-12T23:40:58Z",
   "capture": "c91877c486df8",
   "sha256": "9f2d1e31e4ba7f7a5df186b2db10af70952960102e42422e87b57b414676881d"
  },
  {
   "id": "vectors",
   "publisher": "NASA/JPL",
   "title": "Horizons: geocentric vectors of 99942 Apophis, 11 to 16 April 2029",
   "url": "https://ssd.jpl.nasa.gov/api/horizons.api?format=text&COMMAND=%2799942%27&OBJ_DATA=%27NO%27&MAKE_EPHEM=%27YES%27&EPHEM_TYPE=%27VECTORS%27&CENTER=%27500@399%27&START_TIME=%272029-04-11%2000:00%27&STOP_TIME=%272029-04-16%2000:00%27&STEP_SIZE=%2730%20m%27&REF_PLANE=%27FRAME%27&REF_SYSTEM=%27ICRF%27&VEC_TABLE=%272%27&OUT_UNITS=%27KM-S%27&CSV_FORMAT=%27YES%27&VEC_LABELS=%27NO%27",
   "retrieved": "2026-11-12T23:41:02Z",
   "capture": "c2293b153a4d8",
   "sha256": "e0d7d8b77f0c500ac52db53f520f895ebf12668bb7152b95baca54a7b14ddc23"
  },
  {
   "id": "nasa",
   "publisher": "NASA",
   "title": "Apophis",
   "url": "https://science.nasa.gov/solar-system/asteroids/apophis/",
   "retrieved": "2026-11-12T23:41:06Z",
   "capture": "c2db110988e50",
   "sha256": "c0dcf83d6ba6d2d6c6c3ceda88f5c4272bf20ebf6827827a7e57240f0fe6874b",
   "quotes": [
    "Asteroid Apophis will safely pass close to Earth on April 13, 2029.",
    "It will come about 20,000 miles (32,000 kilometers) from our planet’s surface — closer than the distance of many satellites in geosynchronous orbit (about 22,236 miles, or 36,000 kilometers, in altitude).",
    "NASA is confident that there is no risk of Apophis impacting our planet for at least 100 years."
   ]
  },
  {
   "id": "apex",
   "publisher": "NASA",
   "title": "OSIRIS-APEX",
   "url": "https://science.nasa.gov/mission/osiris-apex/",
   "retrieved": "2026-11-12T23:41:10Z",
   "capture": "c1cb7d2b9b162",
   "sha256": "e46d4aaa944227fe6139ee2e3fcd0fc79d1f0070f23ff82ed67898d13fd785fb",
   "quotes": [
    "OSIRIS-APEX, a follow-on to OSIRIS-REx, will study the physical changes to asteroid Apophis after the asteroid’s rare close encounter with Earth in 2029.",
    "Our planet’s gravitational pull is expected to alter the asteroid’s orbit, change how fast it spins on its axis, and possibly cause quakes or landslides that will alter its surface."
   ]
  }
 ]
}