IAA RAS IAA Minor Planet Database

326291 (1998 HM3)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.0621867379 ± 4.31e-08
Semi-major axis (a)1.2465886492 AU ± 8.71e-10
Inclination (i)39.33002176° ± 9.32e-06
Long. of Asc. Node (Ω)210.80106474° ± 2.12e-06
Arg. of Perihelion (ω)137.08258612° ± 2.69e-05
Mean Anomaly (M)166.39727485° ± 2.55e-05
Mean Motion (n)0.7081536925°/day ± 7.42e-10
Perihelion dist (q)1.16906737 AU ± 5.37e-08
Aphelion dist (Q)1.32410993 AU ± 5.37e-08
Orbital Period1.39182538 yr ± 1.46e-09
Physical Parameters
H (abs. magnitude)19.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.420″
Uncertainty0
Orbit TypeAmor
MOID0.190826 AU
Observations Used525
Oppositions7
Arc Total1998-2023
First Observation Used1998-04-21
Last Observation Used2023-06-01
Observations (666)
Date Type RA Dec Mag Band Observatory
2019-10-12 15:14:26 S 00 13 35.438 +52 34 05.52 – V C57
2019-10-12 15:14:26 s 1 +20131.450 0 +369497.84 6180.0 – C57
2019-10-12 16:44:26 S 00 13 36.252 +52 25 57.90 – V C57
2019-10-12 16:44:26 s 1 +16962.048 0 +370876.78 3030.0 – C57
2019-10-12 17:44:26 S 00 13 38.323 +52 20 49.34 – V C57
2019-10-12 17:44:26 s 1 +14846.918 0 +371748.96 6760.0 – C57
2019-10-12 22:14:26 S 00 13 42.670 +51 56 12.73 – V C57
2019-10-13 03:14:26 S 00 13 49.670 +51 28 48.47 – V C57
2019-10-13 07:14:26 S 00 13 55.834 +51 05 56.54 – V C57
2019-10-13 07:14:26 s 1 -13767.024 0 +379898.71 5020.0 – C57
2019-10-13 07:44:26 S 00 13 56.606 +51 02 42.32 – V C57
2019-10-13 07:44:26 s 1 -14825.326 0 +380072.82 3690.0 – C57
2019-10-13 08:14:26 S 00 13 56.700 +51 00 12.71 – V C57
2019-10-13 08:14:26 s 1 -15883.282 0 +380237.92 560.0 – C57
2019-10-13 08:44:26 S 00 13 57.931 +50 57 07.16 – V C57
2019-10-13 08:44:26 s 1 -16940.866 0 +380394.01 5690.0 – C57
2019-10-13 11:44:26 S 00 14 02.832 +50 39 48.96 – V C57
2019-10-13 11:44:26 s 1 -23277.239 0 +381142.05 4140.0 – C57
2019-10-13 12:14:26 S 00 14 03.233 +50 37 14.05 – V C57
2019-10-13 12:14:26 s 1 -24331.554 0 +381235.39 9150.0 – C57
2019-10-13 13:44:26 S 00 14 05.858 +50 28 09.30 – V C57
2019-10-13 13:44:26 s 1 -27491.026 0 +381461.86 7500.0 – C57
2019-10-13 14:44:26 S 00 14 07.970 +50 22 42.56 – V C57
2019-10-13 14:44:26 s 1 -29594.210 0 +381568.29 8180.0 – C57
2019-10-13 15:14:26 S 00 14 08.429 +50 19 28.45 – V C57
2019-10-13 15:14:26 s 1 -30644.791 0 +381608.16 7260.0 – C57
2019-10-13 15:44:26 S 00 14 08.570 +50 16 59.99 – V C57
2019-10-13 15:44:26 s 1 -31694.667 0 +381639.15 5600.0 – C57
2019-10-13 19:44:26 S 00 14 15.785 +49 53 35.41 – V C57
2019-10-13 19:44:26 s 1 -40065.458 0 +381567.93 3780.0 – C57
2019-10-13 20:14:26 S 00 14 17.611 +49 50 51.79 – V C57
2019-10-13 20:14:26 s 1 -41107.927 0 +381519.23 8510.0 – C57
2019-10-13 23:44:26 S 00 14 23.225 +49 29 47.58 – V C57
2019-10-13 23:44:26 s 1 -48377.552 0 +380931.42 6170.0 – C57
2019-10-14 00:14:26 S 00 14 25.469 +49 27 00.58 – V C57
2019-10-14 00:14:26 s 1 -49411.837 0 +380812.22 0.0 – C57
2019-10-14 00:43:43 C 00 18 15.37 +49 26 06.6 – V A16
2019-10-14 00:55:03 C 00 18 15.77 +49 25 00.0 – V A16
2019-10-14 01:06:23 C 00 18 16.10 +49 23 55.0 – V A16
2019-10-14 01:14:26 S 00 14 26.786 +49 21 53.06 – V C57
2019-10-14 01:14:26 s 1 -51476.996 0 +380547.46 6130.0 – C57
2019-10-14 01:20:34 C 00 18 16.18 +49 22 33.7 – V A16
2019-10-14 01:44:26 S 00 14 28.426 +49 18 21.71 – V C57
2019-10-14 01:44:26 s 1 -52507.823 0 +380401.89 8290.0 – C57
2019-10-14 02:14:26 S 00 14 28.426 +49 15 42.12 – V C57
2019-10-14 02:14:26 s 1 -53537.451 0 +380247.54 9770.0 – C57
2019-10-14 04:14:26 S 00 14 32.359 +49 04 01.60 – V C57
2019-10-14 04:14:26 s 1 -57643.486 0 +379542.33 7400.0 – C57
2019-10-14 09:26:57 C 00 18 30.90 +48 35 27.2 – V T08
2019-10-14 09:31:36 C 00 18 30.94 +48 34 59.7 – V T08