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
2022-01-24 08:46:33 C 03 05 03.51 +25 51 03.3 V T05
2022-01-24 09:02:22 C 03 05 03.42 +25 51 01.3 V T05
2022-02-16 05:34:21 C 03 07 15.341 +25 21 14.47 U F52
2022-02-16 06:07:35 C 03 07 15.765 +25 21 13.72 U F52
2022-02-16 07:11:06 C 03 07 16.583 +25 21 13.02 U F52
2022-02-21 05:43:55 C 03 09 03.818 +25 20 37.34 U F52
2022-02-21 06:04:14 C 03 09 04.151 +25 20 37.30 U F52
2022-02-21 06:24:30 C 03 09 04.479 +25 20 37.34 U F52
2022-02-21 06:44:45 C 03 09 04.811 +25 20 37.33 U F52
2022-03-14 02:28:54 C 03 20 45.93 +25 37 01.9 V G96
2022-03-14 02:36:19 C 03 20 46.19 +25 37 02.5 V G96
2022-03-14 02:43:43 C 03 20 46.38 +25 37 02.9 V G96
2022-03-14 02:51:08 C 03 20 46.62 +25 37 03.4 V G96
2022-08-02 11:45:02 C 06 13 22.721 +30 40 03.50 U I41
2022-08-02 11:48:26 C 06 13 22.930 +30 40 03.79 U I41
2022-08-02 11:51:49 C 06 13 23.150 +30 40 03.90 U I41
2022-08-02 11:55:14 C 06 13 23.369 +30 40 04.01 U I41
2022-08-02 11:58:37 C 06 13 23.570 +30 40 04.19 U I41
2022-08-05 11:48:21 C 06 17 56.071 +30 43 00.19 U I41
2022-08-05 11:51:50 C 06 17 56.299 +30 43 00.30 U I41
2022-08-05 11:55:20 C 06 17 56.510 +30 43 00.52 U I41
2022-08-05 11:58:50 C 06 17 56.741 +30 43 00.70 U I41
2022-08-05 12:02:20 C 06 17 56.959 +30 43 00.91 U I41
2022-08-06 11:47:54 C 06 19 27.331 +30 43 55.88 U I41
2022-08-06 11:51:24 C 06 19 27.540 +30 43 56.10 U I41
2022-08-06 11:54:55 C 06 19 27.761 +30 43 56.32 U I41
2022-08-06 11:58:24 C 06 19 27.979 +30 43 56.39 U I41
2022-08-06 12:01:53 C 06 19 28.200 +30 43 56.71 U I41
2022-08-07 11:47:45 C 06 20 58.680 +30 44 50.60 U I41
2022-08-07 11:51:11 C 06 20 58.930 +30 44 50.32 U I41
2022-08-07 11:54:35 C 06 20 59.131 +30 44 50.71 U I41
2022-08-07 11:58:01 C 06 20 59.321 +30 44 50.39 U I41
2022-08-26 14:26:12 C 06 50 25.591 +30 57 47.88 V T05
2022-08-26 14:32:13 C 06 50 25.985 +30 57 47.23 V T05
2022-08-26 14:59:28 C 06 50 27.730 +30 57 48.46 V T05
2022-08-26 15:03:29 C 06 50 27.850 +30 57 48.60 V T05
2022-08-31 14:10:05 C 06 58 12.305 +31 00 01.80 V T05
2022-08-31 14:15:18 C 06 58 12.641 +31 00 00.68 V T05
2022-08-31 14:23:13 C 06 58 13.222 +31 00 01.12 V T05
2022-08-31 14:38:59 C 06 58 14.153 +31 00 02.56 V T05
2022-09-17 11:12:34 C 07 24 45.176 +31 05 40.02 V 703
2022-09-17 11:19:49 C 07 24 45.605 +31 05 40.63 V 703
2022-09-17 11:27:04 C 07 24 46.069 +31 05 40.34 V 703
2022-09-17 11:34:19 C 07 24 46.494 +31 05 40.31 V 703
2022-09-24 13:53:51 C 07 36 03.146 +31 07 56.96 V T05
2022-09-24 13:58:30 C 07 36 03.427 +31 07 57.07 V T05
2022-09-24 14:07:07 C 07 36 03.994 +31 07 57.00 V T05
2022-09-24 14:21:39 C 07 36 04.958 +31 07 57.47 V T05
2022-09-26 10:02:53 C 07 38 59.168 +31 08 35.38 V 703
2022-09-26 10:10:02 C 07 38 59.626 +31 08 35.88 V 703