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
2021-09-05 20:53:58 S 23 25 29.376 -05 24 38.95 – V C57
2021-09-05 20:53:58 s 1 +161143.04 4 +226770.26 2780.0 – C57
2021-09-05 21:03:58 S 23 25 29.834 -05 24 47.05 – V C57
2021-09-05 21:03:58 s 1 +160944.16 3 +227378.90 4230.0 – C57
2021-09-05 21:10:40 C 23 27 03.40 -05 28 57.8 – Y 557
2021-09-05 21:13:58 S 23 25 30.257 -05 24 55.98 – V C57
2021-09-05 21:13:58 s 1 +160744.27 2 +227986.10 2470.0 – C57
2021-09-05 21:23:58 S 23 25 30.638 -05 25 04.69 – V C57
2021-09-05 21:23:58 s 1 +160543.37 5 +228591.86 7520.0 – C57
2021-09-05 21:33:58 S 23 25 31.068 -05 25 14.95 – V C57
2021-09-05 21:33:58 s 1 +160341.47 7 +229196.17 9390.0 – C57
2021-09-05 21:43:58 S 23 25 31.481 -05 25 23.45 – V C57
2021-09-05 21:43:58 s 1 +160138.58 3 +229799.04 8100.0 – C57
2021-09-05 21:53:58 S 23 25 31.896 -05 25 33.13 – V C57
2021-09-05 21:53:58 s 1 +159934.69 9 +230400.46 3670.0 – C57
2021-09-05 22:03:58 S 23 25 32.345 -05 25 41.09 – V C57
2021-09-05 22:03:58 s 1 +159729.83 0 +231000.45 6110.0 – C57
2021-09-05 22:10:51 C 23 27 06.82 -05 29 50.1 – Y 557
2021-09-05 22:13:58 S 23 25 32.782 -05 25 50.74 – V C57
2021-09-05 22:13:58 s 1 +159523.98 0 +231599.01 5440.0 – C57
2021-09-05 22:17:16 C 23 27 06.74 -05 29 54.6 – V 089
2021-09-05 22:20:35 C 23 27 06.90 -05 29 57.6 – V 089
2021-09-05 22:23:53 C 23 27 07.05 -05 30 00.6 – V 089
2021-09-05 22:23:58 S 23 25 33.257 -05 25 58.66 – V C57
2021-09-05 22:23:58 s 1 +159317.15 4 +232196.13 1670.0 – C57
2021-09-05 22:27:11 C 23 27 07.29 -05 30 03.5 – V 089
2021-09-05 22:30:29 C 23 27 07.45 -05 30 06.1 – V 089
2021-09-05 22:33:47 C 23 27 07.62 -05 30 08.7 – V 089
2021-09-05 22:33:58 S 23 25 33.713 -05 26 07.66 – V C57
2021-09-05 22:33:58 s 1 +159109.35 8 +232791.81 4820.0 – C57
2021-09-05 22:37:05 C 23 27 07.80 -05 30 12.0 – V 089
2021-09-05 22:40:23 C 23 27 07.98 -05 30 14.3 – V 089
2021-09-05 22:43:41 C 23 27 08.18 -05 30 17.6 – V 089
2021-09-05 22:43:58 S 23 25 34.104 -05 26 16.37 – V C57
2021-09-05 22:43:58 s 1 +158900.59 5 +233386.06 4910.0 – C57
2021-09-05 22:46:59 C 23 27 08.35 -05 30 20.1 – V 089
2021-09-05 22:53:58 S 23 25 34.555 -05 26 26.27 – V C57
2021-09-05 22:53:58 s 1 +158690.87 3 +233978.89 1950.0 – C57
2021-09-05 23:03:58 S 23 25 34.946 -05 26 34.87 – V C57
2021-09-05 23:03:58 s 1 +158480.19 4 +234570.28 5960.0 – C57
2021-09-05 23:11:04 C 23 27 10.18 -05 30 42.1 – Y 557
2021-09-05 23:13:58 S 23 25 35.422 -05 26 44.38 – V C57
2021-09-05 23:13:58 s 1 +158268.56 4 +235160.25 6950.0 – C57
2021-09-05 23:23:58 S 23 25 35.760 -05 26 53.59 – V C57
2021-09-05 23:23:58 s 1 +158055.98 7 +235748.79 4940.0 – C57
2021-09-05 23:33:58 S 23 25 36.257 -05 27 01.76 – V C57
2021-09-05 23:33:58 s 1 +157842.46 9 +236335.91 9940.0 – C57
2021-09-05 23:43:58 S 23 25 36.732 -05 27 10.69 – V C57
2021-09-05 23:43:58 s 1 +157628.01 4 +236921.60 1980.0 – C57
2021-09-05 23:53:58 S 23 25 37.186 -05 27 19.04 – V C57
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)