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
2023-12-10 07:53:18 C 01 32 20.057 +13 05 11.51 V T08
2023-12-10 07:57:22 C 01 32 19.997 +13 05 10.61 V T08
2023-12-10 08:04:54 C 01 32 19.836 +13 05 10.28 V T08
2023-12-10 08:07:47 C 01 32 19.740 +13 05 08.95 V T05
2023-12-10 08:19:24 C 01 32 19.474 +13 05 07.87 V T08
2023-12-10 19:38:27 C 01 32 06.298 +13 03 57.10 V M22
2023-12-10 19:43:03 C 01 32 06.158 +13 03 56.30 V M22
2023-12-10 19:51:04 C 01 32 06.055 +13 03 55.91 V M22
2023-12-10 20:05:40 C 01 32 05.767 +13 03 53.71 V M22
2023-12-12 07:59:10 C 01 31 26.057 +13 00 08.60 V T08
2023-12-12 08:06:51 C 01 31 25.937 +13 00 08.06 V T08
2023-12-12 08:11:22 C 01 31 25.836 +13 00 07.38 V T08
2023-12-12 08:51:24 C 01 31 25.075 +13 00 03.20 V T08
2023-12-14 07:18:40 C 01 30 39.281 +12 55 43.25 V T08
2023-12-14 07:24:07 C 01 30 39.156 +12 55 42.20 V T08
2023-12-14 07:32:27 C 01 30 39.048 +12 55 41.56 V T08
2023-12-14 07:48:11 C 01 30 38.734 +12 55 41.12 V T08
2023-12-16 07:23:39 C 01 29 57.919 +12 51 45.54 V T08
2023-12-16 07:30:45 C 01 29 57.790 +12 51 44.78 V T08
2023-12-16 07:35:42 C 01 29 57.610 +12 51 40.93 V T08
2023-12-16 08:11:25 C 01 29 57.238 +12 51 42.41 V T08
2023-12-16 14:49:19 C 01 29 52.14 +12 51 10.7 V N88
2023-12-16 15:34:19 C 01 29 51.47 +12 51 07.4 V N88
2023-12-16 16:19:25 C 01 29 50.93 +12 51 03.6 V N88
2023-12-16 21:13:32 B 01 29 47.17 +12 50 42.5 V M10
2023-12-16 21:27:38 B 01 29 46.96 +12 50 41.1 V M10
2023-12-16 21:40:48 B 01 29 46.75 +12 50 39.7 V M10
2023-12-17 02:07:12 C 01 29 43.438 +12 50 24.18 V W68
2023-12-17 02:11:46 C 01 29 43.361 +12 50 24.36 V W68
2023-12-17 02:21:38 C 01 29 43.298 +12 50 24.29 V W68
2023-12-17 02:37:16 C 01 29 43.063 +12 50 23.32 V W68
2023-12-17 04:06:29 C 01 29 42.025 +12 50 12.77 V G96
2023-12-17 04:14:38 C 01 29 41.921 +12 50 12.08 V G96
2023-12-17 04:22:47 C 01 29 41.816 +12 50 11.51 V G96
2023-12-17 04:30:57 C 01 29 41.708 +12 50 10.93 V G96
2023-12-25 08:00:42 C 01 28 06.321 +12 40 33.15 X F52
2023-12-25 08:16:26 C 01 28 06.249 +12 40 32.77 X F52
2023-12-25 08:32:15 C 01 28 06.176 +12 40 32.22 X F52
2023-12-25 08:47:58 C 01 28 06.100 +12 40 31.69 X F52
2024-01-02 01:27:28 C 01 27 59.830 +12 39 08.28 V W68
2024-01-02 01:41:55 C 01 27 59.890 +12 39 07.78 V W68
2024-01-02 01:46:30 C 01 27 59.916 +12 39 07.99 V W68
2024-01-02 01:54:23 C 01 27 59.950 +12 39 07.24 V W68
2024-01-03 06:25:34 C 01 28 05.616 +12 39 29.23 V T05
2024-01-03 06:30:56 C 01 28 05.628 +12 39 29.41 V T05
2024-01-03 06:38:47 C 01 28 05.688 +12 39 29.52 V T05
2024-01-03 06:59:26 C 01 28 05.767 +12 39 29.88 V T05
2024-01-06 05:46:59 C 01 28 27.237 +12 41 10.62 X F51
2024-01-06 06:07:27 C 01 28 27.350 +12 41 11.21 X F51
2024-01-06 06:24:13 C 01 28 27.442 +12 41 11.72 X F51