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
2021-08-21 14:43:58 s 1 +148211.51 8 +18230.599 9450.0 – C57
2021-08-21 14:53:58 S 22 53 52.591 +01 06 30.38 – V C57
2021-08-21 14:53:58 s 1 +148642.79 9 +19244.136 5140.0 – C57
2021-08-21 15:03:58 S 22 53 53.239 +01 06 19.48 – V C57
2021-08-21 15:03:58 s 1 +149068.62 1 +20256.951 3100.0 – C57
2021-08-21 15:13:58 S 22 53 53.952 +01 06 07.56 – V C57
2021-08-21 15:13:58 s 1 +149489.02 8 +21269.016 3480.0 – C57
2021-08-21 15:23:58 S 22 53 54.672 +01 05 56.65 – V C57
2021-08-21 15:23:58 s 1 +149904.06 2 +22280.303 6410.0 – C57
2021-08-21 15:33:58 S 22 53 55.368 +01 05 45.42 – V C57
2021-08-21 15:33:58 s 1 +150313.76 7 +23290.782 2040.0 – C57
2021-08-21 15:43:58 S 22 53 56.009 +01 05 34.22 – V C57
2021-08-21 15:43:58 s 1 +150718.18 3 +24300.428 510.0 – C57
2021-08-21 15:53:58 S 22 53 56.712 +01 05 22.24 – V C57
2021-08-21 15:53:58 s 1 +151117.35 5 +25309.214 1950.0 – C57
2021-08-21 16:03:58 S 22 53 57.444 +01 05 11.15 – V C57
2021-08-21 16:03:58 s 1 +151511.32 2 +26317.114 6510.0 – C57
2021-08-21 16:13:58 S 22 53 58.114 +01 04 59.77 – V C57
2021-08-21 16:13:58 s 1 +151900.12 6 +27324.103 4300.0 – C57
2021-08-21 16:23:58 S 22 53 58.802 +01 04 48.47 – V C57
2021-08-21 16:23:58 s 1 +152283.80 9 +28330.156 5480.0 – C57
2021-08-21 16:33:58 S 22 53 59.503 +01 04 37.06 – V C57
2021-08-21 16:33:58 s 1 +152662.41 1 +29335.250 180.0 – C57
2021-08-21 16:43:58 S 22 54 00.250 +01 04 25.64 – V C57
2021-08-21 16:43:58 s 1 +153035.97 2 +30339.360 8520.0 – C57
2021-08-21 16:53:58 S 22 54 00.936 +01 04 14.34 – V C57
2021-08-21 16:53:58 s 1 +153404.53 3 +31342.465 650.0 – C57
2021-08-21 17:03:58 S 22 54 01.598 +01 04 02.64 – V C57
2021-08-21 17:03:58 s 1 +153768.13 3 +32344.542 6680.0 – C57
2021-08-21 17:23:58 S 22 54 03.000 +01 03 39.56 – V C57
2021-08-21 17:23:58 s 1 +154480.60 6 +34345.526 990.0 – C57
2021-08-21 17:33:58 S 22 54 03.775 +01 03 27.25 – V C57
2021-08-21 17:33:58 s 1 +154829.55 8 +35344.391 9520.0 – C57
2021-08-21 17:43:58 S 22 54 04.474 +01 03 16.67 – V C57
2021-08-21 17:43:58 s 1 +155173.70 4 +36342.146 2470.0 – C57
2021-08-21 17:53:58 S 22 54 05.143 +01 03 05.33 – V C57
2021-08-21 17:53:58 s 1 +155513.08 3 +37338.769 9960.0 – C57
2021-08-21 18:03:58 S 22 54 05.906 +01 02 53.63 – V C57
2021-08-21 18:03:58 s 1 +155847.73 2 +38334.243 2130.0 – C57
2021-08-21 18:06:57 C 22 54 46.01 +00 56 06.5 – V C40
2021-08-21 18:13:58 S 22 54 06.610 +01 02 42.14 – V C57
2021-08-21 18:13:58 s 1 +156177.68 8 +39328.548 9080.0 – C57
2021-08-21 18:23:58 S 22 54 07.272 +01 02 31.06 – V C57
2021-08-21 18:23:58 s 1 +156502.99 0 +40321.666 950.0 – C57
2021-08-21 18:33:58 S 22 54 07.970 +01 02 19.18 – V C57
2021-08-21 18:33:58 s 1 +156823.67 3 +41313.581 7850.0 – C57
2021-08-21 18:43:58 S 22 54 08.734 +01 02 07.48 – V C57
2021-08-21 18:43:58 s 1 +157139.77 4 +42304.274 9900.0 – C57
2021-08-21 18:53:58 S 22 54 09.442 +01 01 55.81 – V C57
2021-08-21 18:53:58 s 1 +157451.32 9 +43293.730 7230.0 – 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)