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
2014-10-15 09:09:37 C 03 33 54.06 +24 43 08.6 q 703
2014-10-18 07:44:43 C 03 31 00.15 +24 38 37.4 o 926
2014-10-18 08:16:59 C 03 30 58.75 +24 38 35.6 o 926
2014-10-18 08:43:00 C 03 30 57.65 +24 38 33.4 o 926
2014-10-22 09:31:20 C 03 26 45.33 +24 30 52.2 q 703
2014-10-22 09:38:32 C 03 26 44.89 +24 30 52.1 q 703
2014-10-22 09:45:44 C 03 26 44.61 +24 30 50.8 q 703
2014-10-22 09:52:56 C 03 26 44.31 +24 30 49.8 q 703
2014-10-25 10:43:15 C 03 23 25.39 +24 23 55.4 R G45
2014-10-25 10:59:19 C 03 23 24.64 +24 23 53.3 R G45
2014-10-25 11:15:22 C 03 23 23.90 +24 23 51.8 R G45
2014-10-25 11:31:23 C 03 23 23.12 +24 23 50.1 R G45
2014-10-25 11:47:24 C 03 23 22.37 +24 23 48.3 R G45
2014-10-25 12:03:24 C 03 23 21.65 +24 23 46.6 R G45
2014-10-25 12:19:24 C 03 23 20.90 +24 23 44.9 R G45
2014-10-25 13:55:22 C 03 23 16.488 +24 23 36.68 L F51
2014-10-25 14:12:32 C 03 23 15.682 +24 23 34.90 L F51
2014-10-25 14:29:37 C 03 23 14.879 +24 23 33.10 L F51
2014-10-26 10:38:28 C 03 22 18.68 +24 21 26.8 R G45
2014-10-26 10:54:33 C 03 22 17.91 +24 21 25.0 R G45
2014-10-26 11:35:29 C 03 22 15.97 +24 21 20.6 R G45
2014-10-26 11:51:27 C 03 22 15.22 +24 21 19.0 R G45
2014-10-26 12:07:28 C 03 22 14.46 +24 21 17.3 R G45
2014-10-26 12:23:26 C 03 22 13.71 +24 21 15.5 R G45
2014-11-01 07:43:52 C 03 15 34.03 +24 04 50.6 q 703
2014-11-01 07:56:19 C 03 15 33.43 +24 04 49.4 q 703
2014-11-01 08:14:18 C 03 15 32.63 +24 04 47.1 q 703
2014-11-01 08:26:45 C 03 15 31.94 +24 04 44.9 q 703
2014-11-12 17:13:43 C 03 02 05.48 +23 23 57.0 q D00
2014-11-12 17:29:11 C 03 02 04.67 +23 23 54.3 q D00
2014-11-12 17:44:42 C 03 02 03.99 +23 23 52.4 q D00
2014-11-12 18:00:12 C 03 02 03.17 +23 23 49.1 q D00
2014-11-16 05:44:35 C 02 57 58.22 +23 09 30.1 q 703
2014-11-16 05:51:50 C 02 57 57.86 +23 09 28.7 q 703
2014-11-16 05:59:06 C 02 57 57.48 +23 09 27.5 q 703
2014-11-16 06:06:21 C 02 57 57.11 +23 09 26.1 q 703
2014-11-19 06:38:05 C 02 54 29.174 +22 56 32.25 L F51
2014-11-19 06:57:11 C 02 54 28.259 +22 56 28.90 L F51
2014-11-19 07:14:22 C 02 54 27.428 +22 56 25.83 L F51
2014-11-25 04:33:16 C 02 47 57.94 +22 30 26.7 q 703
2014-11-25 04:43:25 C 02 47 57.53 +22 30 23.6 q 703
2014-11-25 04:56:41 C 02 47 56.94 +22 30 22.0 q 703
2014-11-25 06:46:28 C 02 47 51.93 +22 30 01.4 q H15
2014-11-25 07:00:04 C 02 47 51.36 +22 29 59.1 q H15
2014-11-25 07:27:01 C 02 47 50.13 +22 29 53.7 q H15
2014-11-30 06:56:05 C 02 42 43.33 +22 07 36.8 q G96
2014-11-30 07:04:52 C 02 42 42.98 +22 07 35.0 q G96
2014-11-30 07:13:39 C 02 42 42.61 +22 07 33.6 q G96
2014-11-30 07:22:26 C 02 42 42.24 +22 07 31.7 q G96
2014-12-01 04:03:16 C 02 41 51.68 +22 03 40.5 q 703