IAA RAS IAA Minor Planet Database

326732 (2003 HB6)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5703080163 ± 1.89e-09
Semi-major axis (a)2.7131906889 AU ± 7.20e-10
Inclination (i)6.61836662° ± 4.23e-07
Long. of Asc. Node (Ω)161.61119965° ± 2.14e-06
Arg. of Perihelion (ω)145.80553319° ± 2.49e-06
Mean Anomaly (M)348.17984789° ± 1.45e-07
Mean Motion (n)0.2205422491°/day ± 8.77e-11
Perihelion dist (q)1.16583629 AU ± 5.14e-09
Aphelion dist (Q)4.26054509 AU ± 5.25e-09
Orbital Period4.46910416 yr ± 1.78e-09
Physical Parameters
H (abs. magnitude)17.66
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.209″
Uncertainty0
Orbit TypeAmor
MOID0.163175 AU
Observations Used5317
Radar Obs Used1
Oppositions7
Arc Total2003-2012
First Observation Used2003-03-26
Last Observation Used2025-03-25
Observations (8024)
Date Type RA Dec Mag Band Observatory
2021-07-30 12:04:08 C 21 27 19.55 +10 57 21.1 – V T08
2021-07-30 12:29:31 C 21 27 24.18 +10 57 01.2 – V T08
2021-07-30 12:42:18 C 21 27 26.51 +10 56 51.1 – V T08
2021-07-30 13:01:20 C 21 27 29.99 +10 56 36.2 – V T08
2021-07-30 17:34:29 C 21 28 24.58 +10 52 52.7 – q D29
2021-07-30 17:54:52 C 21 28 28.32 +10 52 36.5 – q D29
2021-07-30 18:15:14 C 21 28 32.05 +10 52 20.4 – q D29
2021-07-30 18:32:23 C 21 28 38.43 +10 51 54.1 – V C40
2021-07-30 18:53:27 C 21 28 42.42 +10 51 38.3 – V C40
2021-07-30 19:01:52 C 21 28 44.02 +10 51 31.7 – V C40
2021-07-30 19:03:18 C 21 28 44.30 +10 51 30.8 – V C40
2021-07-30 19:04:41 C 21 28 44.55 +10 51 29.7 – V C40
2021-07-30 19:06:05 C 21 28 44.82 +10 51 28.6 – V C40
2021-07-30 19:12:13 C 21 28 45.97 +10 51 24.1 – V C40
2021-07-30 19:13:39 C 21 28 46.24 +10 51 23.2 – V C40
2021-07-30 19:15:03 C 21 28 46.51 +10 51 21.8 – V C40
2021-07-30 19:22:04 C 21 28 47.84 +10 51 16.5 – V C40
2021-07-30 19:23:28 C 21 28 48.10 +10 51 15.5 – V C40
2021-07-30 19:27:41 C 21 28 48.90 +10 51 12.3 – V C40
2021-07-30 19:33:18 C 21 28 49.95 +10 51 07.8 – V C40
2021-07-30 19:34:43 C 21 28 50.21 +10 51 06.8 – V C40
2021-07-30 19:41:45 C 21 28 51.53 +10 51 01.4 – V C40
2021-07-30 19:43:08 C 21 28 51.79 +10 51 00.5 – V C40
2021-07-30 19:44:34 C 21 28 52.06 +10 50 59.2 – V C40
2021-07-30 19:45:58 C 21 28 52.32 +10 50 58.1 – V C40
2021-07-30 19:47:21 C 21 28 52.58 +10 50 57.0 – V C40
2021-07-30 19:48:46 C 21 28 52.85 +10 50 56.0 – V C40
2021-07-30 19:50:11 C 21 28 53.11 +10 50 54.9 – V C40
2021-07-30 19:52:59 C 21 28 53.63 +10 50 52.7 – V C40
2021-07-30 19:54:53 C 21 28 53.99 +10 50 51.3 – V C40
2021-07-30 19:56:17 C 21 28 54.26 +10 50 50.3 – V C40
2021-07-30 19:57:42 C 21 28 54.51 +10 50 49.2 – V C40
2021-07-30 19:59:07 C 21 28 54.77 +10 50 48.0 – V C40
2021-07-30 20:00:30 C 21 28 55.03 +10 50 47.0 – V C40
2021-07-30 20:01:54 C 21 28 55.30 +10 50 45.8 – V C40
2021-07-30 20:03:20 C 21 28 55.56 +10 50 44.8 – V C40
2021-07-30 20:04:43 C 21 28 55.82 +10 50 43.6 – V C40
2021-07-30 20:06:07 C 21 28 56.09 +10 50 42.5 – V C40
2021-07-30 20:08:25 C 21 28 57.09 +10 50 35.5 – Y 557
2021-07-30 20:08:57 C 21 28 56.62 +10 50 40.4 – V C40
2021-07-30 20:10:20 C 21 28 56.88 +10 50 39.3 – V C40
2021-07-30 20:11:45 C 21 28 57.14 +10 50 38.4 – V C40
2021-07-30 20:13:10 C 21 28 57.40 +10 50 37.2 – V C40
2021-07-30 20:17:23 C 21 28 58.19 +10 50 33.9 – V C40
2021-07-30 20:18:47 C 21 28 58.45 +10 50 32.8 – V C40
2021-07-30 20:20:11 C 21 28 58.71 +10 50 31.8 – V C40
2021-07-30 20:21:35 C 21 28 58.97 +10 50 30.5 – V C40
2021-07-30 20:25:09 C 21 29 00.26 +10 50 22.7 – Y 557
2021-07-30 20:27:12 C 21 29 00.01 +10 50 26.2 – V C40
2021-07-30 20:28:37 C 21 29 00.28 +10 50 25.2 – V C40
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2012-07-15 01:40:00 247744595.14 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)