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
2007-02-09 04:18:58 C 03 02 59.04 +44 36 38.8 14.6 c 704
2007-02-09 04:35:49 C 03 02 55.92 +44 36 17.1 14.7 c 704
2007-02-09 04:52:45 C 03 02 52.77 +44 35 54.4 14.7 c 704
2007-02-09 05:09:39 C 03 02 49.59 +44 35 30.7 14.9 c 704
2007-02-09 18:21:33 C 03 00 25.39 +44 18 06.2 14.2 r 084
2007-02-09 18:24:42 C 03 00 24.77 +44 18 01.9 14.2 r 084
2007-02-11 18:38:19 C 02 51 53.25 +43 13 06.1 c A24
2007-02-11 18:39:48 C 02 51 52.99 +43 13 04.1 c A24
2007-02-12 19:06:03 C 02 47 43.43 +42 39 06.9 r 168
2007-02-12 19:09:33 C 02 47 42.84 +42 39 01.6 r 168
2007-02-12 20:25:55 C 02 47 30.10 +42 37 13.0 r 168
2007-02-12 20:27:32 C 02 47 29.82 +42 37 10.7 r 168
2007-02-12 20:29:10 C 02 47 29.55 +42 37 08.4 r 168
2007-02-12 20:32:47 C 02 47 28.95 +42 37 03.2 r 168
2007-02-12 21:06:39 C 02 47 23.27 +42 36 17.7 14.0 r 084
2007-02-12 21:09:49 C 02 47 22.75 +42 36 13.3 14.1 r 084
2007-02-12 21:21:42 C 02 47 20.82 +42 35 53.7 r 168
2007-02-13 09:17:42 C 02 45 22.00 +42 19 24.6 r 379
2007-02-13 09:20:56 C 02 45 21.44 +42 19 20.0 r 379
2007-02-13 09:22:32 C 02 45 21.17 +42 19 17.8 r 379
2007-02-13 09:24:08 C 02 45 20.89 +42 19 15.5 r 379
2007-02-13 15:17:32 C 02 44 22.61 +42 10 49.9 r 168
2007-02-13 15:19:11 C 02 44 22.33 +42 10 47.4 r 168
2007-02-13 16:33:25 C 02 44 09.96 +42 09 01.3 r 168
2007-02-13 16:43:23 C 02 44 08.28 +42 08 46.9 r 168
2007-02-13 18:41:17 C 02 43 48.98 +42 06 04.6 a 233
2007-02-13 18:45:17 C 02 43 48.31 +42 05 59.1 a 233
2007-02-13 18:49:16 C 02 43 47.63 +42 05 53.2 a 233
2007-02-13 19:06:36 C 02 43 44.80 +42 05 28.1 c A24
2007-02-13 19:08:03 C 02 43 44.56 +42 05 26.1 c A24
2007-02-13 19:32:05 C 02 43 40.58 +42 04 51.3 c A24
2007-02-13 19:44:05 C 02 43 38.58 +42 04 34.0 c A24
2007-02-13 20:20:07 C 02 43 32.55 +42 03 42.1 c A24
2007-02-13 20:21:34 C 02 43 32.32 +42 03 39.9 c A24
2007-02-13 21:03:42 C 02 43 25.39 +42 02 38.7 c A24
2007-02-13 21:25:29 C 02 43 21.79 +42 02 07.0 c A24
2007-02-13 21:47:16 C 02 43 18.22 +42 01 35.4 c A24
2007-02-13 22:29:23 C 02 43 11.24 +42 00 34.3 c A24
2007-02-13 22:30:50 C 02 43 11.01 +42 00 32.2 c A24
2007-02-15 19:05:48 C 02 36 03.76 +40 56 25.8 c A24
2007-02-15 19:07:14 C 02 36 03.53 +40 56 23.7 c A24
2007-02-15 19:27:29 C 02 36 00.30 +40 55 53.6 c A24
2007-02-15 19:36:09 C 02 35 59.03 +40 55 41.0 13.9 o B24
2007-02-15 19:48:31 C 02 35 57.06 +40 55 22.7 13.9 o B24
2007-02-15 19:48:42 C 02 35 56.91 +40 55 22.1 c A24
2007-02-15 20:02:26 C 02 35 54.84 +40 55 01.8 13.9 o B24
2007-02-15 20:09:26 C 02 35 53.60 +40 54 51.2 c A24
2007-02-15 20:10:52 C 02 35 53.39 +40 54 49.1 c A24
2007-02-15 20:30:37 C 02 35 50.26 +40 54 19.7 c A24
2007-02-15 20:51:49 C 02 35 46.89 +40 53 48.2 c A24