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
2021-07-18 09:19:14 C 20 30 40.77 +13 01 50.3 – V T08
2021-07-18 09:20:33 C 20 30 41.00 +13 01 50.2 – V T08
2021-07-18 09:23:52 C 20 30 41.58 +13 01 50.0 – V T08
2021-07-18 09:24:32 C 20 30 41.70 +13 01 50.0 – V T08
2021-07-18 09:32:11 C 20 30 43.02 +13 01 49.6 – V T08
2021-07-18 09:46:48 C 20 30 45.56 +13 01 48.6 – V T08
2021-07-18 10:13:08 C 20 30 50.12 +13 01 46.7 – V T08
2021-07-18 10:53:52 C 20 30 57.16 +13 01 43.9 – V T08
2021-07-18 18:39:08 C 20 32 25.67 +13 00 38.0 – V C40
2021-07-18 18:44:34 C 20 32 26.65 +13 00 37.5 – V C40
2021-07-18 18:48:41 C 20 32 27.39 +13 00 37.3 – V C40
2021-07-18 18:51:25 C 20 32 27.89 +13 00 37.0 – V C40
2021-07-18 18:59:55 C 20 32 29.43 +13 00 36.4 – V C40
2021-07-18 19:01:17 C 20 32 29.67 +13 00 36.4 – V C40
2021-07-18 19:08:06 C 20 32 30.90 +13 00 35.9 – V C40
2021-07-18 19:16:18 C 20 32 32.38 +13 00 35.3 – V C40
2021-07-18 19:25:51 C 20 32 34.09 +13 00 34.6 – V C40
2021-07-18 19:31:17 C 20 32 35.08 +13 00 33.9 – V C40
2021-07-18 19:32:39 C 20 32 35.32 +13 00 34.1 – V C40
2021-07-18 19:34:01 C 20 32 35.56 +13 00 33.7 – V C40
2021-07-18 20:20:48 C 20 32 43.92 +13 00 29.8 – V C40
2021-07-18 20:22:10 C 20 32 44.15 +13 00 29.7 – V C40
2021-07-18 20:27:36 C 20 32 45.11 +13 00 29.2 – V C40
2021-07-18 20:28:58 C 20 32 45.36 +13 00 29.1 – V C40
2021-07-18 20:30:21 C 20 32 45.60 +13 00 29.0 – V C40
2021-07-18 20:31:43 C 20 32 45.84 +13 00 28.8 – V C40
2021-07-18 20:33:05 C 20 32 46.09 +13 00 28.9 – V C40
2021-07-18 20:35:49 C 20 32 46.57 +13 00 28.6 – V C40
2021-07-18 20:37:11 C 20 32 46.82 +13 00 28.4 – V C40
2021-07-18 20:38:31 C 20 32 47.06 +13 00 28.1 – V C40
2021-07-18 20:42:38 C 20 32 47.79 +13 00 27.9 – V C40
2021-07-18 20:44:00 C 20 32 48.02 +13 00 27.6 – V C40
2021-07-18 20:45:22 C 20 32 48.27 +13 00 27.4 – V C40
2021-07-18 20:46:43 C 20 32 48.51 +13 00 27.4 – V C40
2021-07-18 20:48:04 C 20 32 48.76 +13 00 27.3 – V C40
2021-07-18 20:50:48 C 20 32 49.23 +13 00 26.9 – V C40
2021-07-18 20:53:32 C 20 32 49.73 +13 00 26.7 – V C40
2021-07-18 20:54:54 C 20 32 49.96 +13 00 26.5 – V C40
2021-07-18 21:00:21 C 20 32 50.93 +13 00 26.0 – V C40
2021-07-18 21:29:02 C 20 32 57.06 +13 00 16.9 – V G06
2021-07-18 21:31:20 C 20 32 57.47 +13 00 16.6 – V G06
2021-07-18 21:32:29 C 20 32 57.68 +13 00 16.6 – V G06
2021-07-18 22:09:40 C 20 33 04.52 +13 00 13.1 – V Z80
2021-07-18 22:10:40 C 20 33 04.70 +13 00 12.8 – V Z80
2021-07-18 22:11:40 C 20 33 04.90 +13 00 13.2 – V Z80
2021-07-19 08:25:27 C 20 34 59.19 +12 59 03.6 – q U65
2021-07-19 08:50:13 C 20 35 03.61 +12 59 00.4 – q U65
2021-07-19 09:10:33 C 20 35 07.25 +12 58 57.5 – q U65
2021-07-19 10:11:54 C 20 35 19.83 +12 59 09.4 – V T05
2021-07-19 10:14:32 C 20 35 20.28 +12 59 09.1 – V T05
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)