2015 HD1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6472975137
Semi-major axis (a)2.3054114429 AU
Inclination (i)5.33884425° ± 4.00e+00
Long. of Asc. Node (Ω)210.78020571°
Arg. of Perihelion (ω)57.81941115°
Mean Anomaly (M)356.08420388°
Mean Motion (n)0.2815666400°/day
Perihelion dist (q)0.81312370 AU
Aphelion dist (Q)3.79770070 AU
Orbital Period3.50044200 yr
Physical Parameters
H (abs. magnitude)27.40
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.345″
Uncertainty—
Orbit TypeApollo
MOID0.001954 AU
Observations Used52
Oppositions1
Arc Total2015-2015
First Observation Used—
Last Observation Used2015-04-21
Observations (53)
Date Type RA Dec Mag Band Observatory
2015-04-17 23:46:31 C 12 36 10.96 -14 28 25.8 – L W84
2015-04-17 23:51:11 C 12 36 10.62 -14 28 28.6 – L W84
2015-04-17 23:55:51 C 12 36 10.29 -14 28 31.4 – L W84
2015-04-18 00:00:31 C 12 36 09.94 -14 28 34.1 – L W84
2015-04-18 00:05:11 C 12 36 09.60 -14 28 36.9 – L W84
2015-04-18 05:39:20 C 12 35 46.91 -14 36 29.3 – q G96
2015-04-18 05:46:39 C 12 35 46.04 -14 36 33.2 – q G96
2015-04-18 05:54:00 C 12 35 45.17 -14 36 37.4 – q G96
2015-04-18 06:01:21 C 12 35 44.35 -14 36 41.3 – q G96
2015-04-18 07:26:25 C 12 35 34.20 -14 37 21.8 – q I52
2015-04-18 07:29:06 C 12 35 33.93 -14 37 22.4 – q I52
2015-04-18 07:31:47 C 12 35 33.60 -14 37 24.5 – q I52
2015-04-18 07:34:27 C 12 35 33.25 -14 37 25.6 – q I52
2015-04-18 23:44:29 C 12 35 12.69 -14 40 51.5 – L W84
2015-04-18 23:49:08 C 12 35 12.15 -14 40 56.5 – L W84
2015-04-18 23:53:41 C 12 35 11.60 -14 41 01.4 – L W84
2015-04-18 23:58:13 C 12 35 11.06 -14 41 06.2 – L W84
2015-04-19 00:02:52 C 12 35 10.49 -14 41 11.2 – L W84
2015-04-19 07:59:19 C 12 34 03.02 -14 56 35.9 – q G96
2015-04-19 08:01:51 C 12 34 02.52 -14 56 38.3 – q G96
2015-04-19 08:04:20 C 12 34 02.01 -14 56 40.7 – q G96
2015-04-19 08:06:50 C 12 34 01.53 -14 56 43.0 – q G96
2015-04-19 23:54:48 C 12 32 07.77 -15 26 56.7 – q J95
2015-04-19 23:57:43 C 12 32 06.83 -15 27 05.3 – q J95
2015-04-20 00:00:38 C 12 32 05.91 -15 27 12.2 – q J95
2015-04-20 20:26:12 C 12 22 27.93 -17 54 18.3 16.3 q 104
2015-04-20 20:30:39 C 12 22 19.95 -17 55 49.2 16.7 q 104
2015-04-20 20:37:00 C 12 22 08.59 -17 58 00.2 16.4 q 104
2015-04-20 20:40:41 C 12 22 07.30 -17 59 14.1 – q C77
2015-04-20 20:42:08 C 12 22 04.70 -17 59 44.0 – q C77
2015-04-20 20:43:35 C 12 22 02.04 -18 00 15.0 – q C77
2015-04-20 20:44:52 C 12 21 59.58 -18 00 43.1 – q C77
2015-04-20 20:46:20 C 12 21 56.86 -18 01 13.6 – q C77
2015-04-20 20:47:46 C 12 21 54.24 -18 01 44.2 – q C77
2015-04-20 20:49:16 C 12 21 51.42 -18 02 16.2 – q C77
2015-04-20 21:11:06 C 12 20 39.59 -18 11 05.4 – t L04
2015-04-20 21:12:42 C 12 20 36.32 -18 11 40.8 – t L04
2015-04-20 21:14:18 C 12 20 33.00 -18 12 16.2 – t L04
2015-04-20 21:27:48 C 12 20 46.99 -18 18 18.4 – q J95
2015-04-20 21:29:44 C 12 20 43.04 -18 19 04.9 – q J95
2015-04-20 21:32:38 C 12 20 37.10 -18 20 15.1 – q J95
2015-04-20 21:35:35 C 12 20 30.98 -18 21 27.2 – q J95
2015-04-20 21:38:38 C 12 20 24.59 -18 22 42.3 – q J95
2015-04-20 23:04:35 C 12 16 29.24 -19 00 54.1 – q 587
2015-04-20 23:07:08 C 12 16 21.76 -19 02 13.9 – q 587
2015-04-20 23:10:38 C 12 16 11.46 -19 04 03.3 – q 587
2015-04-20 23:44:04 C 12 14 53.36 -19 25 17.0 – q J95
2015-04-21 00:14:23 C 12 13 08.17 -19 44 38.1 – q J95
2015-04-21 00:21:19 C 12 12 42.34 -19 49 21.9 – q J95
2015-04-21 03:30:02 C 11 59 22.91 -23 16 37.2 – q H15