215588 (2003 HF2)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6754868470 ± 1.67e-08
Semi-major axis (a)1.1139099537 AU ± 1.68e-09
Inclination (i)3.05405209° ± 2.86e-06
Long. of Asc. Node (Ω)189.85058128° ± 5.55e-05
Arg. of Perihelion (ω)231.07320503° ± 5.56e-05
Mean Anomaly (M)170.66233050° ± 6.98e-06
Mean Motion (n)0.8383727408°/day ± 1.90e-09
Perihelion dist (q)0.36147843 AU ± 1.86e-08
Aphelion dist (Q)1.86634148 AU ± 1.88e-08
Orbital Period1.17564209 yr ± 2.67e-09
Physical Parameters
H (abs. magnitude)19.42
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.606″
Uncertainty0
Orbit TypeApollo
MOID0.003085 AU
Observations Used391
Radar Obs Used11
Oppositions2
Arc Total2002-2024
First Observation Used2002-05-10
Last Observation Used2024-05-03
Observations (433)
Date Type RA Dec Mag Band Observatory
2017-05-02 01:59:19 C 11 19 34.92 +06 49 57.9 q W34
2017-05-14 04:15:24 C 11 34 24.76 +05 17 09.7 q G96
2017-05-14 04:21:34 C 11 34 25.03 +05 17 07.2 q G96
2017-05-14 04:27:44 C 11 34 25.37 +05 17 05.6 q G96
2017-05-14 04:33:54 C 11 34 25.62 +05 17 03.8 q G96
2017-05-22 04:20:10 C 11 43 52.32 +04 15 06.3 q G96
2017-05-22 04:26:11 C 11 43 52.68 +04 15 03.2 q G96
2017-05-22 04:32:13 C 11 43 52.93 +04 15 01.4 q G96
2017-05-22 04:38:13 C 11 43 53.18 +04 14 59.7 q G96
2018-06-16 22:46:18 C 09 55 20.32 +12 58 34.2 W84
2018-06-16 22:57:59 C 09 55 22.53 +12 58 21.5 W84
2018-06-16 23:08:58 C 09 55 24.45 +12 58 11.8 W84
2018-06-16 23:09:41 C 09 55 24.57 +12 58 11.4 W84
2018-06-16 23:20:34 C 09 55 26.47 +12 58 02.1 W84
2018-06-16 23:21:16 C 09 55 26.59 +12 58 01.3 W84
2020-05-24 10:27:02 C 21 38 05.19 -08 16 10.1 V G96
2020-05-24 10:33:56 C 21 38 06.03 -08 16 03.2 V G96
2020-05-24 10:40:49 C 21 38 06.92 -08 15 57.3 V G96
2020-05-24 10:47:42 C 21 38 07.72 -08 15 51.2 V G96
2020-06-18 06:51:29 S 23 31 35.952 +05 46 12.58 L C51
2020-06-18 09:59:48 S 23 32 33.314 +05 53 20.54 L C51
2020-06-19 00:07:09 S 23 36 56.645 +06 25 46.81 L C51
2020-06-27 13:50:19 C 00 56 44.205 +15 25 34.86 U F52
2020-06-27 14:05:19 C 00 56 51.120 +15 26 17.12 U F52
2020-06-27 14:12:48 C 00 56 54.543 +15 26 37.92 U F52
2021-06-14 05:58:27 C 17 13 23.39 -15 28 19.3 q 858
2021-06-14 06:18:48 C 17 13 20.44 -15 28 13.5 q 858
2021-06-30 08:25:53 C 16 18 28.616 -13 37 47.13 U F51
2021-06-30 08:42:20 C 16 18 26.323 -13 37 42.42 U F51
2021-06-30 09:15:13 C 16 18 21.747 -13 37 32.97 U F51
2021-07-04 08:27:58 C 16 05 53.965 -13 11 18.39 U F51
2021-07-04 08:45:04 C 16 05 51.743 -13 11 13.74 U F51
2021-07-04 09:19:16 C 16 05 47.294 -13 11 04.50 U F51
2022-05-21 09:22:44 C 15 58 36.910 -15 15 55.54 U F52
2022-05-21 09:54:09 C 15 58 33.349 -15 15 43.81 U F52
2022-05-21 10:09:45 C 15 58 31.579 -15 15 37.94 U F52
2022-05-23 09:43:07 C 15 53 16.392 -14 57 42.62 U F52
2022-05-23 09:59:42 C 15 53 14.512 -14 57 36.50 U F52
2022-05-23 10:16:15 C 15 53 12.637 -14 57 30.17 U F52
2022-05-31 06:41:51 C 15 32 57.988 -13 47 11.98 V G96
2022-05-31 06:49:15 C 15 32 57.203 -13 47 09.06 V G96
2022-05-31 06:56:38 C 15 32 56.425 -13 47 06.50 V G96
2022-05-31 07:04:00 C 15 32 55.554 -13 47 04.02 V G96
2022-06-01 07:40:34 C 15 30 24.433 -13 38 12.48 V G96
2022-06-01 07:47:56 C 15 30 23.663 -13 38 10.36 V G96
2022-06-01 07:55:18 C 15 30 22.900 -13 38 07.19 V G96
2022-06-01 08:02:41 C 15 30 22.144 -13 38 04.60 V G96
2022-06-01 08:27:41 C 15 30 19.986 -13 37 54.37 U F52
2022-06-01 08:45:14 C 15 30 18.157 -13 37 48.18 U F52
2022-06-01 09:02:43 C 15 30 16.324 -13 37 41.90 U F52
Radar Observations (11)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2017-03-26 18:21:00 50463378.29 4 us 2380 -1 -1
2017-03-26 18:48:00 50329851.95 0.5 us 2380 -1 -1
2017-03-26 20:31:00 49833276.31 0.5 us 2380 -1 -1
2017-03-27 19:09:00 44641416.23 4 us 2380 -1 -1
2017-03-27 19:22:00 44605098.44 4 us 2380 -1 -1
2017-03-27 20:03:00 44493191.01 0.5 us 2380 -1 -1
2017-03-29 01:30:00 42677991.41 1.5 us 8560 -14 -14
2017-03-29 22:01:00 44939763.06 1 us 2380 -1 -1
2017-03-30 00:50:00 45462442.94 1.5 us 8560 -14 -14
2017-03-30 23:06:00 51047435.85 1 us 2380 -1 -1
2017-04-01 01:19:00 60192103.4 1 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)