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
2021-08-13 22:44:51 C 22 29 12.31 +04 48 55.5 – V 089
2021-08-13 22:48:09 C 22 29 12.78 +04 48 51.8 – V 089
2021-08-13 22:51:27 C 22 29 13.22 +04 48 47.5 – V 089
2021-08-13 22:54:45 C 22 29 13.71 +04 48 43.8 – V 089
2021-08-13 22:57:04 C 22 29 13.23 +04 48 34.4 – q 168
2021-08-13 22:58:03 C 22 29 14.22 +04 48 39.8 – V 089
2021-08-13 23:01:21 C 22 29 14.67 +04 48 35.3 – V 089
2021-08-13 23:04:39 C 22 29 15.15 +04 48 31.8 – V 089
2021-08-14 11:38:08 C 22 31 09.55 +04 33 14.0 – V T08
2021-08-14 11:42:48 C 22 31 10.20 +04 33 08.3 – V T08
2021-08-14 12:33:29 C 22 31 17.18 +04 32 05.0 – V T08
2021-08-14 12:43:04 C 22 31 18.50 +04 31 53.0 – V T08
2021-08-14 20:18:14 C 22 32 29.57 +04 22 02.7 – Y 557
2021-08-14 21:16:49 C 22 32 37.95 +04 20 50.1 – Y 557
2021-08-14 21:24:05 C 22 32 38.47 +04 20 40.1 – V L99
2021-08-14 21:24:20 C 22 32 38.57 +04 20 40.0 – V L99
2021-08-14 21:24:35 C 22 32 38.54 +04 20 39.8 – V L99
2021-08-14 21:24:50 C 22 32 38.64 +04 20 40.8 – V L99
2021-08-14 21:25:05 C 22 32 38.61 +04 20 38.9 – V L99
2021-08-14 21:25:20 C 22 32 38.65 +04 20 39.8 – V L99
2021-08-14 21:25:35 C 22 32 38.66 +04 20 38.7 – V L99
2021-08-14 21:25:50 C 22 32 38.73 +04 20 39.2 – V L99
2021-08-14 21:26:05 C 22 32 38.77 +04 20 39.1 – V L99
2021-08-14 21:26:20 C 22 32 38.76 +04 20 37.4 – V L99
2021-08-14 21:26:35 C 22 32 38.85 +04 20 38.3 – V L99
2021-08-14 21:26:50 C 22 32 38.86 +04 20 37.9 – V L99
2021-08-14 21:27:05 C 22 32 38.94 +04 20 37.6 – V L99
2021-08-14 21:27:20 C 22 32 38.99 +04 20 35.8 – V L99
2021-08-14 21:27:35 C 22 32 38.94 +04 20 35.8 – V L99
2021-08-14 22:23:47 C 22 32 47.42 +04 19 27.0 – Y 557
2021-08-14 22:35:50 C 22 32 48.52 +04 19 14.1 – V 089
2021-08-14 22:39:09 C 22 32 48.97 +04 19 08.8 – V 089
2021-08-14 22:42:27 C 22 32 49.42 +04 19 04.7 – V 089
2021-08-14 22:48:48 C 22 32 51.15 +04 18 54.5 – V G33
2021-08-14 22:49:03 C 22 32 50.34 +04 18 57.4 – V 089
2021-08-14 22:50:30 C 22 32 51.39 +04 18 52.7 – V G33
2021-08-14 22:52:13 C 22 32 51.63 +04 18 50.7 – V G33
2021-08-14 22:52:21 C 22 32 50.80 +04 18 53.0 – V 089
2021-08-14 22:53:30 C 22 32 51.80 +04 18 49.0 – V G33
2021-08-14 22:55:33 C 22 32 52.10 +04 18 46.3 – V G33
2021-08-14 22:55:39 C 22 32 51.27 +04 18 48.9 – V 089
2021-08-14 22:57:14 C 22 32 52.33 +04 18 44.3 – V G33
2021-08-14 22:58:57 C 22 32 51.71 +04 18 45.3 – V 089
2021-08-14 23:02:15 C 22 32 52.19 +04 18 40.9 – V 089
2021-08-14 23:29:11 C 22 32 56.59 +04 18 05.4 – Y 557
2021-08-14 23:46:49 C 22 32 59.22 +04 17 47.3 – V 160
2021-08-14 23:50:08 C 22 32 59.68 +04 17 43.1 – V 160
2021-08-14 23:53:29 C 22 33 00.14 +04 17 39.0 – V 160
2021-08-15 00:27:31 C 22 33 04.72 +04 16 52.6 – Y 557
2021-08-15 01:29:40 C 22 33 13.40 +04 15 35.0 – Y 557
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)