IAA RAS IAA Minor Planet Database

185702 (1998 HK3)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3002429039 ± 1.05e-07
Semi-major axis (a)1.8281033897 AU ± 8.14e-09
Inclination (i)24.69535276° ± 1.43e-05
Long. of Asc. Node (Ω)27.07958027° ± 1.28e-05
Arg. of Perihelion (ω)267.63340906° ± 2.62e-05
Mean Anomaly (M)356.05859320° ± 2.36e-05
Mean Motion (n)0.3987595941°/day ± 2.66e-09
Perihelion dist (q)1.27922832 AU ± 1.92e-07
Aphelion dist (Q)2.37697846 AU ± 1.93e-07
Orbital Period2.47173058 yr ± 1.65e-08
Physical Parameters
H (abs. magnitude)18.10
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.974″
Uncertainty0
Orbit TypeAmor
MOID0.488196 AU
Observations Used875
Oppositions16
Arc Total1998-2025
First Observation Used1998-04-20
Last Observation Used2025-03-19
Observations (1387)
Date Type RA Dec Mag Band Observatory
2018-09-01 15:44:41 s 1 -214308.51 4 +260234.54 850.0 – C57
2018-09-01 16:14:41 S 01 40 34.404 -48 42 37.80 – V C57
2018-09-01 16:14:41 s 1 -214786.85 2 +258877.59 6080.0 – C57
2018-09-01 17:14:41 S 01 40 27.154 -48 41 50.64 – V C57
2018-09-01 17:14:41 s 1 -215723.53 8 +256139.16 1150.0 – C57
2018-09-01 18:14:41 S 01 40 20.287 -48 41 10.43 – V C57
2018-09-01 18:14:41 s 1 -216633.22 5 +253368.03 3790.0 – C57
2018-09-01 23:14:41 S 01 39 46.130 -48 37 41.41 – V C57
2018-09-01 23:14:41 s 1 -220761.64 1 +239021.78 5750.0 – C57
2018-09-02 00:44:41 S 01 39 35.474 -48 36 42.12 – V C57
2018-09-02 00:44:41 s 1 -221858.19 0 +234558.50 590.0 – C57
2018-09-02 01:44:41 S 01 39 28.476 -48 35 54.02 – V C57
2018-09-02 01:44:41 s 1 -222551.35 3 +231542.12 5850.0 – C57
2018-09-02 02:44:41 S 01 39 21.463 -48 35 11.58 – V C57
2018-09-02 02:44:41 s 1 -223213.64 7 +228493.06 6820.0 – C57
2018-09-03 00:14:41 S 01 36 53.770 -48 20 05.28 – V C57
2018-09-03 00:14:41 s 1 -228907.42 9 +155092.14 0.063 – C57
2018-09-03 08:44:41 S 01 35 56.659 -48 14 12.01 – V C57
2018-09-03 08:44:41 s 1 -225736.26 0 +122037.40 0.469 – C57
2018-09-03 10:14:41 S 01 35 45.737 -48 13 01.70 – V C57
2018-09-03 10:14:41 s 1 -224790.03 7 +115978.89 0.219 – C57
2018-09-03 12:44:41 S 01 35 29.134 -48 11 17.27 – V C57
2018-09-03 12:44:41 s 1 -222929.70 6 +105735.73 0.05 – C57
2018-09-03 15:44:41 S 01 35 08.854 -48 09 13.07 – V C57
2018-09-03 15:44:41 s 1 -220215.56 2 +93214.777 0.636 – C57
2018-09-03 18:44:41 S 01 34 49.030 -48 06 58.68 – V C57
2018-09-03 18:44:41 s 1 -216938.88 6 +80453.954 0.407 – C57
2018-09-08 02:14:41 S 01 21 14.251 -47 06 30.78 – V C57
2018-09-08 02:14:41 s 1 +152304.78 9 +112292.14 0.029 – C57
2018-09-08 02:44:41 S 01 21 09.557 -47 06 09.32 – V C57
2018-09-08 02:44:41 s 1 +152086.26 4 +114874.27 0.752 – C57
2018-09-08 03:44:41 S 01 20 59.160 -47 05 21.55 – V C57
2018-09-08 03:44:41 s 1 +151592.19 6 +119994.82 0.865 – C57
2018-09-08 05:14:41 S 01 20 45.326 -47 04 16.18 – V C57
2018-09-08 05:14:41 s 1 +150714.10 3 +127565.61 0.724 – C57
2018-09-08 05:44:41 S 01 20 40.625 -47 03 48.60 – V C57
2018-09-08 05:44:41 s 1 +150386.29 9 +130059.71 0.375 – C57
2018-09-08 06:14:41 S 01 20 35.806 -47 03 29.81 – V C57
2018-09-08 06:14:41 s 1 +150041.51 3 +132539.01 0.021 – C57
2018-09-08 06:44:41 S 01 20 31.027 -47 02 58.70 – V C57
2018-09-08 06:44:41 s 1 +149680.07 6 +135003.49 0.848 – C57
2018-09-08 07:14:41 S 01 20 25.843 -47 02 33.43 – V C57
2018-09-08 07:14:41 s 1 +149302.31 2 +137453.12 0.034 – C57
2018-09-08 09:44:41 S 01 20 01.440 -47 00 31.90 – V C57
2018-09-08 09:44:41 s 1 +147179.44 7 +149478.32 0.435 – C57
2018-09-08 13:14:41 S 01 19 27.854 -46 57 31.39 – V C57
2018-09-08 13:14:41 s 1 +143604.45 0 +165689.33 0.506 – C57
2018-09-08 15:44:41 S 01 19 04.212 -46 55 28.85 – V C57
2018-09-08 15:44:41 s 1 +140664.58 2 +176824.87 0.497 – C57
2018-09-08 17:44:41 S 01 18 44.873 -46 53 41.46 – V C57