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
2021-09-05 23:53:58 s 1 +157412.62 7 +237505.88 1050.0 – C57
2021-09-06 00:03:58 S 23 25 37.603 -05 27 28.22 – V C57
2021-09-06 00:03:58 s 1 +157196.31 3 +238088.74 7190.0 – C57
2021-09-06 00:09:04 C 23 27 13.41 -05 31 32.0 – Y 557
2021-09-06 00:13:58 S 23 25 38.014 -05 27 37.33 – V C57
2021-09-06 00:13:58 s 1 +156979.07 5 +238670.18 400.0 – C57
2021-09-06 00:23:58 S 23 25 38.443 -05 27 46.84 – V C57
2021-09-06 00:23:58 s 1 +156760.91 9 +239250.20 700.0 – C57
2021-09-06 00:33:58 S 23 25 38.870 -05 27 55.55 – V C57
2021-09-06 00:33:58 s 1 +156541.85 0 +239828.81 8100.0 – C57
2021-09-06 00:43:58 S 23 25 39.293 -05 28 04.69 – V C57
2021-09-06 00:43:58 s 1 +156321.87 2 +240406.01 2620.0 – C57
2021-09-06 00:53:58 S 23 25 39.766 -05 28 13.15 – V C57
2021-09-06 00:53:58 s 1 +156100.98 9 +240981.80 4270.0 – C57
2021-09-06 01:03:58 S 23 25 40.234 -05 28 21.86 – V C57
2021-09-06 01:03:58 s 1 +155879.20 6 +241556.18 3070.0 – C57
2021-09-06 01:12:32 C 23 27 16.96 -05 32 26.5 – Y 557
2021-09-06 01:13:58 S 23 25 40.656 -05 28 30.47 – V C57
2021-09-06 01:13:58 s 1 +155656.52 8 +242129.15 9040.0 – C57
2021-09-06 01:23:58 S 23 25 41.074 -05 28 40.04 – V C57
2021-09-06 01:23:58 s 1 +155432.95 8 +242700.71 2180.0 – C57
2021-09-06 01:33:58 S 23 25 41.506 -05 28 48.11 – V C57
2021-09-06 01:33:58 s 1 +155208.50 2 +243270.88 2510.0 – C57
2021-09-06 01:43:58 S 23 25 41.950 -05 28 58.37 – V C57
2021-09-06 01:43:58 s 1 +154983.16 4 +243839.64 40.0 – C57
2021-09-06 01:53:58 S 23 25 42.362 -05 29 06.72 – V C57
2021-09-06 01:53:58 s 1 +154756.94 8 +244407.00 4800.0 – C57
2021-09-06 02:03:58 S 23 25 42.802 -05 29 15.94 – V C57
2021-09-06 02:03:58 s 1 +154529.85 8 +244972.95 6790.0 – C57
2021-09-06 02:13:58 S 23 25 43.246 -05 29 24.50 – V C57
2021-09-06 02:13:58 s 1 +154301.90 0 +245537.52 6020.0 – C57
2021-09-06 02:23:58 S 23 25 43.735 -05 29 33.14 – V C57
2021-09-06 02:23:58 s 1 +154073.07 6 +246100.68 2520.0 – C57
2021-09-06 02:33:58 S 23 25 44.186 -05 29 42.18 – V C57
2021-09-06 02:33:58 s 1 +153843.39 2 +246662.45 6290.0 – C57
2021-09-06 02:43:58 S 23 25 44.623 -05 29 50.75 – V C57
2021-09-06 02:43:58 s 1 +153612.85 2 +247222.83 7350.0 – C57
2021-09-06 02:53:58 S 23 25 45.082 -05 30 00.00 – V C57
2021-09-06 02:53:58 s 1 +153381.46 0 +247781.82 5710.0 – C57
2021-09-06 03:03:58 S 23 25 45.473 -05 30 09.07 – V C57
2021-09-06 03:03:58 s 1 +153149.22 0 +248339.42 1380.0 – C57
2021-09-06 03:13:58 S 23 25 45.898 -05 30 18.07 – V C57
2021-09-06 03:13:58 s 1 +152916.13 6 +248895.63 4390.0 – C57
2021-09-06 03:23:58 S 23 25 46.313 -05 30 26.68 – V C57
2021-09-06 03:23:58 s 1 +152682.21 3 +249450.45 4740.0 – C57
2021-09-06 03:33:58 S 23 25 46.781 -05 30 36.00 – V C57
2021-09-06 03:33:58 s 1 +152447.45 4 +250003.89 2440.0 – C57
2021-09-06 03:43:58 S 23 25 47.282 -05 30 44.10 – V C57
2021-09-06 03:43:58 s 1 +152211.86 5 +250555.94 7510.0 – C57
2021-09-06 03:53:58 S 23 25 47.734 -05 30 53.64 – V C57
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)