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
2021-08-17 20:53:46 C 22 42 50.64 +02 51 18.3 – V C40
2021-08-17 20:55:11 C 22 42 50.83 +02 51 16.4 – V C40
2021-08-17 20:59:23 C 22 42 51.36 +02 51 11.3 – V C40
2021-08-17 21:00:48 C 22 42 51.54 +02 51 09.5 – V C40
2021-08-17 21:02:13 C 22 42 51.71 +02 51 07.7 – V C40
2021-08-17 21:03:36 C 22 42 51.90 +02 51 05.8 – V C40
2021-08-17 21:05:00 C 22 42 52.07 +02 51 04.3 – V C40
2021-08-17 21:06:25 C 22 42 52.25 +02 51 02.5 – V C40
2021-08-17 21:07:50 C 22 42 52.43 +02 51 00.7 – V C40
2021-08-17 21:09:13 C 22 42 52.61 +02 50 59.0 – V C40
2021-08-17 21:10:37 C 22 42 52.79 +02 50 57.1 – V C40
2021-08-17 21:12:02 C 22 42 52.96 +02 50 55.5 – V C40
2021-08-17 21:13:26 C 22 42 53.14 +02 50 53.7 – V C40
2021-08-17 21:14:50 C 22 42 53.31 +02 50 52.0 – V C40
2021-08-17 21:18:03 C 22 42 52.99 +02 50 41.4 – q 168
2021-08-17 21:54:04 C 22 42 57.63 +02 49 56.5 – q 168
2021-08-18 01:10:55 C 22 43 24.22 +02 45 57.7 – V L63
2021-08-18 01:20:19 C 22 43 25.39 +02 45 46.1 – V L63
2021-08-18 01:29:23 C 22 43 26.54 +02 45 34.7 – V L63
2021-08-18 10:20:08 C 22 44 39.45 +02 34 49.6 – V T08
2021-08-18 10:35:24 C 22 44 41.30 +02 34 30.5 – V T08
2021-08-18 10:48:02 C 22 44 42.83 +02 34 14.8 – V T08
2021-08-18 10:52:46 C 22 44 43.40 +02 34 08.9 – V T08
2021-08-18 11:51:00 C 22 44 52.93 +02 32 43.6 – q Q21
2021-08-18 11:58:33 C 22 44 53.90 +02 32 34.2 – q Q21
2021-08-18 19:49:00 C 22 45 56.34 +02 22 42.6 – q L47
2021-08-18 20:25:32 C 22 46 00.98 +02 21 57.8 – q L47
2021-08-19 19:28:00 C 22 49 00.69 +01 53 21.8 – q L47
2021-08-19 20:07:29 C 22 49 05.49 +01 52 33.2 – q L47
2021-08-20 07:38:08 C 22 50 31.73 +01 38 27.4 – U I41
2021-08-20 08:54:53 C 22 50 40.51 +01 36 52.9 – U I41
2021-08-20 08:57:35 C 22 50 40.82 +01 36 49.6 – U I41
2021-08-20 09:15:25 C 22 50 44.69 +01 36 36.5 – V T05
2021-08-20 09:18:03 C 22 50 44.98 +01 36 33.4 – V T05
2021-08-20 09:22:00 C 22 50 45.45 +01 36 28.4 – V T05
2021-08-20 09:39:25 C 22 50 47.43 +01 36 07.0 – V T05
2021-08-20 10:06:47 C 22 50 48.73 +01 35 24.3 – U I41
2021-08-20 10:08:09 C 22 50 48.89 +01 35 22.6 – U I41
2021-08-20 18:16:38 C 22 51 52.40 +01 25 14.6 – V C40
2021-08-20 18:22:06 C 22 51 53.04 +01 25 07.5 – V C40
2021-08-20 18:31:39 C 22 51 54.17 +01 24 55.9 – V C40
2021-08-20 18:42:33 C 22 51 55.45 +01 24 42.7 – V C40
2021-08-20 18:46:40 C 22 51 55.93 +01 24 37.5 – V C40
2021-08-20 18:48:02 C 22 51 56.10 +01 24 35.7 – V C40
2021-08-20 18:50:45 C 22 51 56.42 +01 24 32.4 – V C40
2021-08-20 19:00:50 C 22 51 57.60 +01 24 20.3 – V C40
2021-08-20 19:02:10 C 22 51 57.75 +01 24 18.5 – V C40
2021-08-20 19:06:16 C 22 51 58.24 +01 24 13.5 – V C40
2021-08-20 19:07:39 C 22 51 58.40 +01 24 12.0 – V C40
2021-08-20 19:09:01 C 22 51 58.55 +01 24 10.4 – 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)