2015 HF9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5403318182 ± 8.20e-08
Semi-major axis (a)1.3470215862 AU ± 1.24e-08
Inclination (i)16.40458110° ± 8.38e-06
Long. of Asc. Node (Ω)211.66469609° ± 1.38e-05
Arg. of Perihelion (ω)204.40530873° ± 1.82e-05
Mean Anomaly (M)30.96394352° ± 8.80e-06
Mean Motion (n)0.6304497010°/day ± 8.69e-09
Perihelion dist (q)0.61918296 AU ± 1.11e-07
Aphelion dist (Q)2.07486021 AU ± 1.12e-07
Orbital Period1.56337021 yr ± 2.15e-08
Physical Parameters
H (abs. magnitude)20.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.205″
Uncertainty0
Orbit TypeApollo
MOID0.246078 AU
Observations Used68
Oppositions4
Arc Total2015-2025
First Observation Used2015-04-18
Last Observation Used2025-08-16
Observations (70)
Date Type RA Dec Mag Band Observatory
2015-04-18 08:16:41 C 13 58 50.41 -13 24 25.7 L W84
2015-04-18 08:21:21 C 13 58 50.01 -13 24 21.5 L W84
2015-04-18 08:26:00 C 13 58 49.62 -13 24 17.2 L W84
2015-04-18 08:30:42 C 13 58 49.20 -13 24 12.8 L W84
2015-04-18 08:35:21 C 13 58 48.83 -13 24 08.6 L W84
2015-04-19 07:57:51 C 13 56 53.65 -13 02 56.4 L W84
2015-04-19 07:58:23 C 13 56 54.00 -13 03 06.5 o 291
2015-04-19 08:02:30 C 13 56 53.26 -13 02 52.1 L W84
2015-04-19 08:04:23 C 13 56 53.49 -13 03 01.5 o 291
2015-04-19 08:07:12 C 13 56 52.87 -13 02 47.9 L W84
2015-04-19 08:10:22 C 13 56 52.87 -13 02 55.6 o 291
2015-04-19 08:11:51 C 13 56 52.48 -13 02 43.7 L W84
2015-04-19 08:16:32 C 13 56 52.09 -13 02 39.4 L W84
2015-04-20 08:38:36 C 13 54 53.39 -12 40 48.3 o 926
2015-04-20 08:57:08 C 13 54 51.81 -12 40 31.8 o 926
2015-04-20 09:15:34 C 13 54 50.25 -12 40 15.0 o 926
2015-04-21 07:02:42 C 13 53 05.30 -12 20 38.5 o 291
2015-04-21 07:07:20 C 13 53 04.88 -12 20 34.2 o 291
2015-04-21 07:59:22 C 13 53 00.24 -12 19 37.2 L W84
2015-04-21 08:03:59 C 13 52 59.86 -12 19 33.1 L W84
2015-04-21 08:08:44 C 13 52 59.47 -12 19 28.6 L W84
2015-04-21 08:13:20 C 13 52 59.10 -12 19 24.5 L W84
2015-04-21 08:18:02 C 13 52 58.72 -12 19 20.3 L W84
2015-04-22 07:57:22 C 13 51 05.73 -11 58 10.8 L W84
2015-04-22 08:02:02 C 13 51 05.36 -11 58 06.6 L W84
2015-04-22 08:06:42 C 13 51 04.98 -11 58 02.3 L W84
2015-04-22 08:11:23 C 13 51 04.60 -11 57 58.2 L W84
2015-04-22 08:16:01 C 13 51 04.23 -11 57 54.1 L W84
2015-04-28 11:33:30 C 13 39 59.283 -09 50 46.48 t 568
2015-04-28 11:40:02 C 13 39 58.804 -09 50 40.97 t 568
2015-05-11 06:47:32 C 13 21 39.08 -06 06 01.3 t 705
2015-05-11 06:49:24 C 13 21 38.98 -06 06 00.0 t 705
2015-05-11 06:51:16 C 13 21 38.90 -06 05 59.0 t 705
2017-05-26 11:41:30 C 17 51 38.478 -00 23 22.02 L F51
2017-05-26 11:58:51 C 17 51 37.380 -00 23 10.65 L F51
2017-05-26 12:33:35 C 17 51 35.147 -00 22 48.68 L F51
2017-06-25 08:24:08 C 16 54 26.518 +05 32 08.16 L F51
2017-06-25 08:42:31 C 16 54 24.916 +05 32 12.79 L F51
2017-06-25 09:00:53 C 16 54 23.334 +05 32 17.95 L F51
2017-06-25 09:19:12 C 16 54 21.753 +05 32 22.63 L F51
2017-07-15 02:40:59 C 16 20 54.33 +06 09 39.8 u H21
2017-07-15 03:07:16 C 16 20 52.89 +06 09 37.2 u H21
2017-07-15 03:25:24 C 16 20 51.88 +06 09 35.5 u H21
2018-04-13 06:49:09 C 11 33 11.36 -11 31 43.4 U I52
2018-04-13 06:54:06 C 11 33 11.20 -11 31 34.7 U I52
2018-04-13 06:59:04 C 11 33 11.03 -11 31 28.2 U I52
2018-04-13 07:04:01 C 11 33 10.87 -11 31 22.3 U I52
2018-04-16 05:59:46 C 11 31 24.41 -09 59 18.5 U G96
2018-04-16 06:07:11 C 11 31 24.24 -09 59 09.1 U G96
2018-04-16 06:14:36 C 11 31 24.04 -09 58 59.8 U G96