2212 Hephaistos (1978 SB)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8346603000
Semi-major axis (a)2.1675877000 AU
Inclination (i)11.20255000°
Long. of Asc. Node (Ω)26.56556000°
Arg. of Perihelion (ω)210.46301000°
Mean Anomaly (M)308.24302000°
Mean Motion (n)0.3088439100°/day
Perihelion dist (q)0.35838830 AU
Aphelion dist (Q)3.97678710 AU
Orbital Period3.19128080 yr
Physical Parameters
H (abs. magnitude)13.45
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.730″
Uncertainty0
Orbit TypeApollo
MOID0.111922 AU
Observations Used4548
Oppositions39
Arc Total1978-2026
First Observation Used
Last Observation Used2026-03-22
Observations (4672)
Date Type RA Dec Mag Band Observatory
2007-01-19 23:45:12 C 04 57 10.12 +51 33 06.3 c A24
2007-01-19 23:46:39 C 04 57 09.72 +51 33 05.9 c A24
2007-01-20 22:18:30 C 04 51 04.06 +51 27 00.5 14.3 o 084
2007-01-20 22:21:39 C 04 51 03.18 +51 26 59.5 14.3 o 084
2007-01-21 20:24:45 C 04 45 06.47 +51 19 38.7 c A24
2007-01-21 20:26:15 C 04 45 06.13 +51 19 38.3 c A24
2007-01-22 20:46:20 C 04 38 33.62 +51 09 37.2 14.5 o 084
2007-01-22 20:49:30 C 04 38 32.82 +51 09 35.9 14.6 o 084
2007-01-24 14:58:13 C 04 27 22.64 +50 48 10.9 14.0 o 084
2007-01-24 15:01:22 C 04 27 21.83 +50 48 09.4 13.9 o 084
2007-01-24 15:04:51 C 04 27 20.85 +50 48 07.0 13.9 o 084
2007-01-24 15:08:02 C 04 27 20.01 +50 48 05.3 13.9 o 084
2007-01-24 16:33:15 C 04 26 57.42 +50 47 18.1 14.0 o 084
2007-01-25 00:43:31 C 04 24 48.64 +50 42 34.9 o H89
2007-01-25 01:24:26 C 04 24 37.01 +50 41 59.1 13.9 o 084
2007-01-25 01:27:36 C 04 24 36.23 +50 41 57.3 14.0 o 084
2007-01-25 02:49:43 C 04 24 15.09 +50 41 18.7 o H89
2007-01-25 04:10:17 C 04 23 53.91 +50 40 28.7 o H89
2007-01-25 16:48:20 C 04 20 37.39 +50 32 33.3 13.7 o 084
2007-01-25 16:51:29 C 04 20 36.53 +50 32 31.3 13.7 o 084
2007-01-26 02:28:16 C 04 18 06.56 +50 26 03.8 14.3 r 084
2007-01-26 02:31:26 C 04 18 05.75 +50 26 01.7 14.3 r 084
2007-01-26 03:56:12 C 04 17 44.25 +50 25 21.1 14.3 c 704
2007-01-26 04:13:30 C 04 17 39.66 +50 25 09.2 14.3 c 704
2007-01-26 04:30:48 C 04 17 35.16 +50 24 57.4 14.8 c 704
2007-01-26 04:48:03 C 04 17 30.57 +50 24 45.3 14.5 c 704
2007-01-26 18:24:14 C 04 14 02.22 +50 15 17.4 c A24
2007-01-26 18:26:21 C 04 14 01.68 +50 15 15.9 c A24
2007-01-26 19:34:45 C 04 13 43.88 +50 14 27.3 c A24
2007-01-26 19:36:13 C 04 13 43.47 +50 14 26.2 c A24
2007-01-26 20:06:32 C 04 13 35.62 +50 14 04.4 c A24
2007-01-26 20:36:53 C 04 13 27.73 +50 13 42.2 c A24
2007-01-26 20:38:22 C 04 13 27.35 +50 13 41.2 c A24
2007-01-26 21:56:50 C 04 13 07.09 +50 12 44.5 r A06
2007-01-26 21:59:59 C 04 13 06.27 +50 12 42.2 r A06
2007-01-26 22:05:16 C 04 13 04.89 +50 12 38.3 r A06
2007-01-26 22:09:37 C 04 13 03.80 +50 12 35.1 r A06
2007-01-27 13:50:30 C 04 09 05.36 +50 00 57.2 r 379
2007-01-27 13:52:26 C 04 09 04.86 +50 00 55.7 r 379
2007-01-27 13:54:23 C 04 09 04.37 +50 00 54.1 r 379
2007-01-27 14:00:15 C 04 09 02.87 +50 00 49.5 r 379
2007-01-27 14:02:11 C 04 09 02.39 +50 00 47.9 r 379
2007-01-27 18:33:39 C 04 07 55.40 +49 57 20.3 c A24
2007-01-27 18:35:05 C 04 07 55.03 +49 57 19.2 c A24
2007-01-27 19:28:12 C 04 07 41.28 +49 56 37.0 c A24
2007-01-27 19:29:39 C 04 07 41.09 +49 56 36.2 c A24
2007-01-27 23:06:06 C 04 06 46.02 +49 53 43.4 c A24
2007-01-27 23:07:32 C 04 06 45.68 +49 53 42.3 c A24
2007-01-28 18:07:36 C 04 02 04.05 +49 38 23.5 c A24
2007-01-28 18:09:04 C 04 02 03.71 +49 38 22.1 c A24