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
2021-08-01 20:16:12 C 21 38 17.88 +10 10 14.9 – V C40
2021-08-01 20:17:37 C 21 38 18.15 +10 10 13.5 – V C40
2021-08-01 20:20:25 C 21 38 18.66 +10 10 11.1 – V C40
2021-08-01 20:21:50 C 21 38 18.92 +10 10 09.7 – V C40
2021-08-01 20:23:14 C 21 38 19.17 +10 10 08.7 – V C40
2021-08-01 20:24:38 C 21 38 19.43 +10 10 07.3 – V C40
2021-08-01 20:26:02 C 21 38 19.68 +10 10 06.1 – V C40
2021-08-01 20:28:52 C 21 38 20.20 +10 10 03.6 – V C40
2021-08-01 20:30:15 C 21 38 20.46 +10 10 02.4 – V C40
2021-08-01 20:31:41 C 21 38 20.71 +10 10 01.3 – V C40
2021-08-01 20:33:05 C 21 38 20.98 +10 09 59.9 – V C40
2021-08-01 20:34:28 C 21 38 21.23 +10 09 58.8 – V C40
2021-08-01 20:35:53 C 21 38 21.49 +10 09 57.6 – V C40
2021-08-01 20:37:18 C 21 38 21.75 +10 09 56.4 – V C40
2021-08-01 20:38:42 C 21 38 22.00 +10 09 55.1 – V C40
2021-08-01 20:40:06 C 21 38 22.26 +10 09 53.7 – V C40
2021-08-01 20:41:30 C 21 38 22.52 +10 09 52.7 – V C40
2021-08-01 20:42:55 C 21 38 22.78 +10 09 51.3 – V C40
2021-08-01 20:58:07 C 21 38 25.55 +10 09 37.9 – V C40
2021-08-01 20:59:32 C 21 38 25.81 +10 09 36.7 – V C40
2021-08-01 21:00:56 C 21 38 26.07 +10 09 35.4 – V C40
2021-08-01 21:02:20 C 21 38 26.33 +10 09 34.2 – V C40
2021-08-01 21:10:47 C 21 38 27.85 +10 09 26.7 – V C40
2021-08-01 22:13:46 C 21 38 39.63 +10 08 29.5 – V 089
2021-08-01 22:17:05 C 21 38 40.24 +10 08 26.5 – V 089
2021-08-01 22:20:23 C 21 38 40.84 +10 08 23.7 – V 089
2021-08-01 22:23:41 C 21 38 41.44 +10 08 20.6 – V 089
2021-08-01 22:26:59 C 21 38 42.04 +10 08 17.7 – V 089
2021-08-01 22:30:17 C 21 38 42.64 +10 08 14.6 – V 089
2021-08-01 22:33:35 C 21 38 43.25 +10 08 11.8 – V 089
2021-08-01 22:36:53 C 21 38 43.84 +10 08 08.7 – V 089
2021-08-01 22:40:11 C 21 38 44.44 +10 08 05.9 – V 089
2021-08-01 22:42:23 C 21 38 45.99 +10 07 59.8 – V Z80
2021-08-01 22:43:29 C 21 38 45.06 +10 08 02.8 – V 089
2021-08-01 22:44:53 C 21 38 46.43 +10 07 57.4 – V Z80
2021-08-01 22:52:23 C 21 38 47.83 +10 07 51.0 – V Z80
2021-08-02 17:50:26 C 21 42 27.24 +09 50 32.6 – V C40
2021-08-02 18:38:28 C 21 42 36.17 +09 49 49.2 – V C40
2021-08-02 18:48:18 C 21 42 37.98 +09 49 40.5 – V C40
2021-08-02 18:49:44 C 21 42 38.24 +09 49 39.1 – V C40
2021-08-02 18:51:08 C 21 42 38.50 +09 49 37.8 – V C40
2021-08-02 18:52:31 C 21 42 38.75 +09 49 36.5 – V C40
2021-08-02 19:00:58 C 21 42 40.31 +09 49 28.7 – V C40
2021-08-02 19:03:46 C 21 42 40.83 +09 49 26.6 – V C40
2021-08-02 19:30:06 C 21 42 45.66 +09 49 02.4 – V C40
2021-08-02 19:31:30 C 21 42 45.91 +09 49 01.1 – V C40
2021-08-02 19:35:43 C 21 42 46.67 +09 48 57.2 – V C40
2021-08-02 19:38:32 C 21 42 47.20 +09 48 54.9 – V C40
2021-08-02 19:39:57 C 21 42 47.46 +09 48 53.4 – V C40
2021-08-02 19:42:44 C 21 42 47.96 +09 48 50.8 – 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)