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
2021-07-16 20:17:52 C 20 23 51.54 +13 02 49.3 – V C40
2021-07-16 20:56:31 C 20 23 58.22 +13 02 50.1 – V C40
2021-07-16 20:57:53 C 20 23 58.45 +13 02 50.0 – V C40
2021-07-16 21:03:22 C 20 23 59.39 +13 02 50.1 – V C40
2021-07-16 21:04:43 C 20 23 59.62 +13 02 50.2 – V C40
2021-07-16 21:08:48 C 20 24 00.33 +13 02 50.3 – V C40
2021-07-16 21:10:10 C 20 24 00.56 +13 02 50.3 – V C40
2021-07-16 21:11:32 C 20 24 00.80 +13 02 50.3 – V C40
2021-07-16 21:14:16 C 20 24 01.27 +13 02 50.2 – V C40
2021-07-16 21:18:21 C 20 24 01.97 +13 02 50.4 – V C40
2021-07-16 21:19:43 C 20 24 02.20 +13 02 50.3 – V C40
2021-07-16 21:23:49 C 20 24 02.90 +13 02 50.5 – V C40
2021-07-16 21:25:11 C 20 24 03.14 +13 02 50.4 – V C40
2021-07-16 21:27:55 C 20 24 03.61 +13 02 50.3 – V C40
2021-07-16 21:31:59 C 20 24 04.31 +13 02 50.4 – V C40
2021-07-16 21:33:21 C 20 24 04.55 +13 02 50.7 – V C40
2021-07-16 21:54:23 C 20 24 09.45 +13 02 44.7 – V Z80
2021-07-16 21:56:03 C 20 24 09.73 +13 02 44.7 – V Z80
2021-07-16 21:57:43 C 20 24 10.01 +13 02 44.6 – V Z80
2021-07-16 22:22:33 C 20 24 13.32 +13 02 49.1 – V 089
2021-07-16 22:25:52 C 20 24 13.91 +13 02 49.3 – V 089
2021-07-16 22:29:10 C 20 24 14.44 +13 02 49.5 – V 089
2021-07-16 22:32:29 C 20 24 15.02 +13 02 49.5 – V 089
2021-07-16 23:15:32 C 20 24 22.45 +13 02 49.6 – V 089
2021-07-16 23:18:50 C 20 24 22.99 +13 02 49.0 – V 089
2021-07-16 23:22:08 C 20 24 23.61 +13 02 49.4 – V 089
2021-07-16 23:25:26 C 20 24 24.14 +13 02 49.3 – V 089
2021-07-17 07:46:06 C 20 25 57.00 +13 02 51.6 – q U69
2021-07-17 08:21:15 C 20 26 02.76 +13 02 51.2 – q U69
2021-07-17 08:48:50 C 20 26 07.50 +13 02 50.6 – q U69
2021-07-17 09:52:19 C 20 26 20.31 +13 03 02.6 – V T08
2021-07-17 10:00:19 C 20 26 21.67 +13 03 02.6 – V T08
2021-07-17 10:17:07 C 20 26 24.54 +13 03 02.4 – V T08
2021-07-17 21:58:14 C 20 28 34.39 +13 02 09.3 – V Z80
2021-07-17 21:59:54 C 20 28 34.72 +13 02 09.4 – V Z80
2021-07-17 22:01:34 C 20 28 35.01 +13 02 09.3 – V Z80
2021-07-17 22:55:48 C 20 28 43.49 +13 02 10.9 – V 089
2021-07-17 22:59:06 C 20 28 44.08 +13 02 10.9 – V 089
2021-07-17 23:02:24 C 20 28 44.64 +13 02 10.7 – V 089
2021-07-17 23:12:18 C 20 28 46.37 +13 02 10.5 – V 089
2021-07-17 23:15:31 C 20 28 47.82 +13 02 06.6 – V G33
2021-07-17 23:15:36 C 20 28 46.98 +13 02 09.6 – V 089
2021-07-17 23:17:12 C 20 28 48.12 +13 02 06.4 – V G33
2021-07-17 23:18:54 C 20 28 47.51 +13 02 09.2 – V 089
2021-07-17 23:19:02 C 20 28 48.46 +13 02 06.3 – V G33
2021-07-17 23:20:39 C 20 28 48.72 +13 02 06.3 – V G33
2021-07-17 23:22:12 C 20 28 48.11 +13 02 09.7 – V 089
2021-07-17 23:22:20 C 20 28 49.03 +13 02 06.4 – V G33
2021-07-17 23:24:07 C 20 28 49.34 +13 02 06.0 – V G33
2021-07-17 23:25:30 C 20 28 48.69 +13 02 09.5 – 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)