2012 HP15

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3484359150 ± 1.35e-06
Semi-major axis (a)1.1356893279 AU ± 3.65e-08
Inclination (i)29.50970382° ± 5.04e-05
Long. of Asc. Node (Ω)201.01615886° ± 2.21e-05
Arg. of Perihelion (ω)131.08723898° ± 1.27e-04
Mean Anomaly (M)359.47403556° ± 1.67e-04
Mean Motion (n)0.8143722360°/day ± 3.92e-08
Perihelion dist (q)0.73997438 AU ± 1.53e-06
Aphelion dist (Q)1.53140428 AU ± 1.53e-06
Orbital Period1.21028964 yr ± 5.83e-08
Physical Parameters
H (abs. magnitude)21.94
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.404″
Uncertainty0
Orbit TypeApollo
MOID0.169952 AU
Observations Used46
Oppositions1
Arc Total2012-2018
First Observation Used2012-04-23
Last Observation Used2018-04-16
Observations (46)
Date Type RA Dec Mag Band Observatory
2012-04-23 05:58:18 C 14 22 10.56 +22 12 38.3 r 703
2012-04-23 06:03:16 C 14 22 10.23 +22 13 08.0 r 703
2012-04-23 06:08:06 C 14 22 09.76 +22 13 38.7 r 703
2012-04-23 06:35:46 C 14 22 07.24 +22 16 25.5 r 703
2012-04-23 06:37:05 C 14 22 07.28 +22 16 33.5 r 703
2012-04-23 06:38:25 C 14 22 07.17 +22 16 42.1 r 703
2012-04-23 06:39:43 C 14 22 07.03 +22 16 50.3 r 703
2012-04-23 07:13:57 C 14 22 03.53 +22 20 12.8 u H36
2012-04-23 07:22:15 C 14 22 02.85 +22 21 03.0 u H36
2012-04-23 07:38:00 C 14 22 01.53 +22 22 38.4 u H36
2012-04-23 07:56:21 C 14 21 59.67 +22 24 27.9 r H21
2012-04-23 08:02:08 C 14 21 59.20 +22 25 02.5 r H21
2012-04-23 08:07:49 C 14 21 58.73 +22 25 36.7 r H21
2012-04-23 09:43:09 C 14 21 51.24 +22 35 16.6 r 703
2012-04-23 09:44:28 C 14 21 51.24 +22 35 26.8 r 703
2012-04-23 09:47:07 C 14 21 50.96 +22 35 44.4 r 703
2012-04-24 06:09:44 C 14 20 17.95 +24 38 56.2 o 291
2012-04-24 06:10:56 C 14 20 17.85 +24 39 03.6 o 291
2012-04-24 06:12:06 C 14 20 17.74 +24 39 10.3 o 291
2012-04-24 06:13:35 C 14 20 16.84 +24 39 15.8 o H36
2012-04-24 06:25:11 C 14 20 15.93 +24 40 25.6 o H36
2012-04-24 06:33:53 C 14 20 15.19 +24 41 18.3 o H36
2012-04-24 07:14:57 C 14 20 11.28 +24 45 25.3 r H21
2012-04-24 07:22:34 C 14 20 10.57 +24 46 11.7 r H21
2012-04-24 07:30:35 C 14 20 09.86 +24 47 00.0 r H21
2012-04-24 23:51:40 C 14 18 51.31 +26 25 19.3 t 204
2012-04-25 00:22:33 C 14 18 48.50 +26 28 24.4 t 204
2012-05-01 05:44:29 C 14 04 57.05 +40 36 17.9 o H21
2012-05-01 05:55:11 C 14 04 55.84 +40 37 13.9 o H21
2012-05-01 06:06:04 C 14 04 54.59 +40 38 10.3 o H21
2012-05-11 08:46:14 C 13 35 20.03 +58 00 37.7 o 291
2012-05-11 08:48:57 C 13 35 19.63 +58 00 46.8 o 291
2012-05-11 08:51:39 C 13 35 19.17 +58 00 55.7 o 291
2012-05-19 03:37:41 C 13 05 42.20 +66 47 40.0 o H21
2012-05-19 03:56:10 C 13 05 38.62 +66 48 22.4 o H21
2012-05-19 04:15:34 C 13 05 34.80 +66 49 06.9 o H21
2018-04-15 05:29:49 C 11 27 27.57 -05 25 17.8 U G96
2018-04-15 05:37:14 C 11 27 26.91 -05 24 53.1 U G96
2018-04-15 05:44:40 C 11 27 26.33 -05 24 28.9 U G96
2018-04-15 05:52:07 C 11 27 25.69 -05 24 04.4 U G96
2018-04-15 06:45:41 C 11 27 21.17 -05 21 08.8 U H01
2018-04-15 06:55:58 C 11 27 20.32 -05 20 34.8 U H01
2018-04-15 07:05:40 C 11 27 19.51 -05 20 02.9 U H01
2018-04-15 07:16:04 C 11 27 18.66 -05 19 28.8 U H01
2018-04-16 00:42:52 C 11 25 59.96 -04 21 42.9 U 807
2018-04-16 00:52:47 C 11 25 59.20 -04 21 10.0 U 807