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
2021-08-22 17:13:58 s 1 +169191.87 2 +161545.24 3450.0 – C57
2021-08-22 17:23:58 S 22 55 54.060 +00 34 51.60 – V C57
2021-08-22 17:23:58 s 1 +169116.79 7 +162313.13 4150.0 – C57
2021-08-22 17:33:58 S 22 55 54.893 +00 34 39.14 – V C57
2021-08-22 17:33:58 s 1 +169039.97 5 +163079.34 9250.0 – C57
2021-08-22 17:43:58 S 22 55 55.699 +00 34 27.41 – V C57
2021-08-22 17:43:58 s 1 +168961.41 8 +163843.86 8790.0 – C57
2021-08-22 17:53:58 S 22 55 56.539 +00 34 15.10 – V C57
2021-08-22 17:53:58 s 1 +168881.13 6 +164606.71 2810.0 – C57
2021-08-22 18:03:58 S 22 55 57.420 +00 34 02.53 – V C57
2021-08-22 18:03:58 s 1 +168799.13 8 +165367.87 1330.0 – C57
2021-08-22 18:13:58 S 22 55 58.243 +00 33 50.08 – V C57
2021-08-22 18:13:58 s 1 +168715.43 7 +166127.36 4390.0 – C57
2021-08-22 18:23:58 S 22 55 59.006 +00 33 37.30 – V C57
2021-08-22 18:23:58 s 1 +168630.04 1 +166885.18 2030.0 – C57
2021-08-22 18:33:58 S 22 55 59.890 +00 33 25.85 – V C57
2021-08-22 18:33:58 s 1 +168542.96 2 +167641.31 4280.0 – C57
2021-08-22 18:43:58 S 22 56 00.706 +00 33 13.54 – V C57
2021-08-22 18:43:58 s 1 +168454.20 8 +168395.78 1180.0 – C57
2021-08-22 18:53:58 S 22 56 01.541 +00 33 00.61 – V C57
2021-08-22 18:53:58 s 1 +168363.79 2 +169148.58 2740.0 – C57
2021-08-22 19:03:58 S 22 56 02.431 +00 32 48.48 – V C57
2021-08-22 19:03:58 s 1 +168271.72 2 +169899.71 9010.0 – C57
2021-08-22 19:13:58 S 22 56 03.218 +00 32 36.17 – V C57
2021-08-22 19:13:58 s 1 +168178.00 8 +170649.17 30.0 – C57
2021-08-22 19:23:58 S 22 56 04.068 +00 32 23.89 – V C57
2021-08-22 19:23:58 s 1 +168082.66 0 +171396.96 5810.0 – C57
2021-08-22 19:33:58 S 22 56 04.934 +00 32 11.33 – V C57
2021-08-22 19:33:58 s 1 +167985.68 9 +172143.10 6390.0 – C57
2021-08-22 19:43:58 S 22 56 05.755 +00 31 58.91 – V C57
2021-08-22 19:43:58 s 1 +167887.10 3 +172887.57 1810.0 – C57
2021-08-22 19:53:58 S 22 56 06.593 +00 31 46.49 – V C57
2021-08-22 19:53:58 s 1 +167786.91 2 +173630.38 2100.0 – C57
2021-08-22 20:03:58 S 22 56 07.452 +00 31 34.18 – V C57
2021-08-22 20:03:58 s 1 +167685.12 6 +174371.54 7280.0 – C57
2021-08-22 20:13:58 S 22 56 08.261 +00 31 22.15 – V C57
2021-08-22 20:13:58 s 1 +167581.75 5 +175111.04 7390.0 – C57
2021-08-22 20:23:58 S 22 56 09.079 +00 31 09.73 – V C57
2021-08-22 20:23:58 s 1 +167476.80 7 +175848.88 2460.0 – C57
2021-08-22 20:33:58 S 22 56 10.010 +00 30 56.74 – V C57
2021-08-22 20:33:58 s 1 +167370.29 2 +176585.07 2520.0 – C57
2021-08-22 20:43:58 S 22 56 10.822 +00 30 44.78 – V C57
2021-08-22 20:43:58 s 1 +167262.22 0 +177319.62 7590.0 – C57
2021-08-22 20:53:58 S 22 56 11.614 +00 30 32.00 – V C57
2021-08-22 20:53:58 s 1 +167152.59 9 +178052.51 7710.0 – C57
2021-08-22 21:03:58 S 22 56 12.509 +00 30 19.62 – V C57
2021-08-22 21:03:58 s 1 +167041.43 8 +178783.76 2910.0 – C57
2021-08-22 21:13:58 S 22 56 13.346 +00 30 07.02 – V C57
2021-08-22 21:13:58 s 1 +166928.74 7 +179513.36 3220.0 – C57
2021-08-22 21:23:58 S 22 56 14.186 +00 29 54.89 – 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)