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
2021-08-09 22:33:15 C 22 13 42.08 +06 45 48.7 – Y 557
2021-08-09 22:40:09 C 22 13 43.19 +06 45 40.1 – V G34
2021-08-09 22:42:45 C 22 13 43.61 +06 45 37.1 – V G34
2021-08-09 22:45:22 C 22 13 44.02 +06 45 34.0 – V G34
2021-08-09 22:47:58 C 22 13 44.44 +06 45 30.9 – V G34
2021-08-09 22:50:34 C 22 13 44.86 +06 45 27.9 – V G34
2021-08-09 22:53:11 C 22 13 45.28 +06 45 24.8 – V G34
2021-08-09 23:05:13 C 22 13 46.54 +06 45 13.5 – V 089
2021-08-09 23:08:32 C 22 13 47.04 +06 45 09.3 – V 089
2021-08-09 23:11:50 C 22 13 47.58 +06 45 05.8 – V 089
2021-08-09 23:15:08 C 22 13 48.10 +06 45 01.7 – V 089
2021-08-09 23:18:26 C 22 13 48.62 +06 44 57.7 – V 089
2021-08-09 23:21:44 C 22 13 49.14 +06 44 53.9 – V 089
2021-08-09 23:25:02 C 22 13 49.65 +06 44 49.6 – V 089
2021-08-09 23:28:20 C 22 13 50.20 +06 44 46.0 – V 089
2021-08-09 23:31:38 C 22 13 50.71 +06 44 42.0 – V 089
2021-08-09 23:33:12 C 22 13 51.67 +06 44 38.0 – Y 557
2021-08-09 23:34:56 C 22 13 51.25 +06 44 38.1 – V 089
2021-08-10 00:31:56 C 22 14 01.01 +06 43 28.9 – Y 557
2021-08-10 01:23:52 C 22 14 09.29 +06 42 27.3 – Y 557
2021-08-10 02:22:37 C 22 14 18.70 +06 41 17.4 – Y 557
2021-08-10 10:25:12 C 22 15 41.82 +06 32 08.0 – V T08
2021-08-10 10:27:52 C 22 15 42.22 +06 32 04.9 – V T08
2021-08-10 10:32:31 C 22 15 42.94 +06 31 59.4 – V T08
2021-08-10 10:39:51 C 22 15 44.07 +06 31 50.7 – V T08
2021-08-10 20:18:17 C 22 17 21.59 +06 19 54.7 – Y 557
2021-08-10 21:19:50 C 22 17 31.39 +06 18 41.8 – Y 557
2021-08-10 22:16:20 C 22 17 40.28 +06 17 34.5 – Y 557
2021-08-10 23:15:04 C 22 17 49.45 +06 16 24.4 – Y 557
2021-08-11 00:13:46 C 22 17 58.60 +06 15 13.9 – Y 557
2021-08-11 10:11:03 C 22 19 37.843 +06 03 35.25 – U F51
2021-08-11 10:30:04 C 22 19 40.708 +06 03 12.33 – U F51
2021-08-11 10:49:04 C 22 19 43.559 +06 02 49.44 – U F51
2021-08-11 11:08:08 C 22 19 46.408 +06 02 26.43 – U F51
2021-08-12 10:32:23 C 22 23 33.49 +05 33 56.4 – V T05
2021-08-12 10:37:39 C 22 23 34.22 +05 33 49.4 – V T05
2021-08-12 10:40:17 C 22 23 34.61 +05 33 46.3 – V T05
2021-08-12 10:42:56 C 22 23 35.00 +05 33 43.1 – V T05
2021-08-12 10:44:58 C 22 23 35.29 +05 33 40.5 – V T05
2021-08-12 10:54:12 C 22 23 36.64 +05 33 29.2 – V T05
2021-08-12 19:53:04 C 22 25 02.18 +05 22 01.8 – q 168
2021-08-12 20:56:04 C 22 25 11.63 +05 20 44.5 – q 168
2021-08-12 21:50:04 C 22 25 19.71 +05 19 37.9 – q 168
2021-08-12 22:35:04 C 22 25 26.46 +05 18 42.4 – q 168
2021-08-13 19:15:04 C 22 28 40.84 +04 53 09.7 – q 168
2021-08-13 20:24:04 C 22 28 50.93 +04 51 44.3 – q 168
2021-08-13 21:45:03 C 22 29 02.73 +04 50 03.8 – q 168
2021-08-13 22:34:57 C 22 29 10.88 +04 49 08.2 – V 089
2021-08-13 22:38:15 C 22 29 11.36 +04 49 03.8 – V 089
2021-08-13 22:41:33 C 22 29 11.87 +04 48 59.7 – V 089
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)