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
2006-12-12 21:38:40 C 07 36 36.92 +42 24 46.6 c A24
2006-12-12 22:46:02 C 07 36 32.69 +42 25 40.0 c A24
2006-12-12 22:47:28 C 07 36 32.58 +42 25 41.1 c A24
2006-12-13 09:08:52 C 07 35 53.15 +42 33 43.6 r H45
2006-12-13 09:10:09 C 07 35 53.07 +42 33 44.5 r H45
2006-12-13 09:12:30 C 07 35 52.92 +42 33 46.4 r H45
2006-12-13 09:15:02 C 07 35 52.74 +42 33 48.3 r H45
2006-12-13 09:16:26 C 07 35 52.65 +42 33 49.4 r H45
2006-12-13 21:01:03 C 07 35 07.73 +42 42 54.8 c A94
2006-12-13 21:06:41 C 07 35 07.36 +42 42 59.1 c A94
2006-12-13 21:12:17 C 07 35 06.96 +42 43 03.8 c A94
2006-12-14 22:46:25 C 07 33 22.22 +43 03 14.9 15.7 r 130
2006-12-14 22:47:52 C 07 33 22.10 +43 03 16.0 15.8 r 130
2006-12-14 22:49:19 C 07 33 22.00 +43 03 17.2 15.8 r 130
2006-12-14 22:50:02 C 07 33 21.95 +43 03 17.8 15.8 r 130
2006-12-14 23:16:40 C 07 33 20.02 +43 03 39.7 c A24
2006-12-14 23:18:05 C 07 33 19.92 +43 03 40.9 c A24
2006-12-14 23:47:47 C 07 33 17.74 +43 04 04.8 c A24
2006-12-15 00:47:08 C 07 33 13.38 +43 04 52.3 c A24
2006-12-15 00:48:35 C 07 33 13.29 +43 04 53.5 c A24
2006-12-15 21:15:01 C 07 31 44.03 +43 21 13.6 c 127
2006-12-15 21:25:45 C 07 31 43.21 +43 21 22.6 c 127
2006-12-15 21:37:45 C 07 31 42.30 +43 21 32.5 c 127
2006-12-17 07:40:10 C 07 29 01.35 +43 49 20.6 r 703
2006-12-17 07:55:41 C 07 29 00.09 +43 49 32.8 r 703
2006-12-17 08:11:05 C 07 28 58.72 +43 49 46.3 r 703
2006-12-17 08:28:22 C 07 28 57.25 +43 50 00.5 r 703
2006-12-18 22:42:02 C 07 25 38.66 +44 21 40.2 15.3 r 084
2006-12-18 22:46:12 C 07 25 38.26 +44 21 43.8 15.3 r 084
2006-12-24 19:44:34 C 07 10 26.97 +46 22 02.7 14.9 r 084
2006-12-24 19:48:44 C 07 10 26.45 +46 22 06.3 15.0 r 084
2006-12-25 21:18:45 C 07 07 08.50 +46 44 01.5 15.0 r 084
2006-12-25 21:22:55 C 07 07 07.91 +46 44 05.2 15.0 r 084
2006-12-26 06:06:26 C 07 05 58.05 +46 51 38.4 r 703
2006-12-26 06:21:21 C 07 05 56.00 +46 51 51.3 r 703
2006-12-26 06:36:10 C 07 05 53.95 +46 52 04.1 r 703
2006-12-26 06:51:06 C 07 05 51.93 +46 52 17.4 r 703
2006-12-26 22:11:11 C 07 03 45.34 +47 05 19.4 c 127
2006-12-26 22:15:15 C 07 03 44.77 +47 05 22.4 c 127
2006-12-26 22:19:22 C 07 03 44.18 +47 05 26.3 c 127
2006-12-26 22:23:27 C 07 03 43.59 +47 05 29.7 c 127
2006-12-26 22:28:05 C 07 03 42.93 +47 05 33.8 c 127
2006-12-26 23:42:24 C 07 03 32.24 +47 06 38.6 r 106
2006-12-26 23:50:40 C 07 03 31.06 +47 06 45.7 r 106
2006-12-26 23:58:58 C 07 03 29.87 +47 06 52.5 r 106
2006-12-27 00:07:15 C 07 03 28.67 +47 06 59.6 r 106
2006-12-27 23:24:25 C 07 00 08.28 +47 26 45.3 o A06
2006-12-27 23:34:44 C 07 00 06.73 +47 26 54.2 o A06
2006-12-30 02:32:49 C 06 52 13.59 +48 09 13.6 14.6 o 084
2006-12-30 02:37:00 C 06 52 12.89 +48 09 16.9 14.7 o 084