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
2018-09-15 13:44:41 s 1 -190593.61 5 +292302.13 9390.0 – C57
2018-09-15 14:44:41 S 00 54 29.890 -43 47 24.11 – V C57
2018-09-15 14:44:41 s 1 -191890.21 5 +289962.58 3710.0 – C57
2018-09-15 15:14:41 S 00 54 26.460 -43 46 48.22 – V C57
2018-09-15 15:14:41 s 1 -192530.14 8 +288780.13 2410.0 – C57
2018-09-15 15:44:41 S 00 54 22.025 -43 46 06.78 – V C57
2018-09-15 15:44:41 s 1 -193164.44 5 +287589.22 1800.0 – C57
2018-09-15 16:44:41 S 00 54 14.594 -43 44 50.96 – V C57
2018-09-15 16:44:41 s 1 -194415.95 6 +285182.04 1680.0 – C57
2018-09-15 17:14:41 S 00 54 10.531 -43 44 03.26 – V C57
2018-09-15 17:14:41 s 1 -195033.08 2 +283965.75 1660.0 – C57
2018-09-15 17:44:41 S 00 54 05.988 -43 43 33.67 – V C57
2018-09-15 17:44:41 s 1 -195644.39 5 +282741.00 1340.0 – C57
2018-09-15 18:44:41 S 00 53 58.404 -43 42 20.84 – V C57
2018-09-15 18:44:41 s 1 -196849.40 1 +280266.09 8740.0 – C57
2018-09-15 19:14:41 S 00 53 54.010 -43 41 36.38 – V C57
2018-09-15 19:14:41 s 1 -197443.00 2 +279015.92 5950.0 – C57
2018-09-15 19:44:41 S 00 53 50.935 -43 40 59.05 – V C57
2018-09-15 19:44:41 s 1 -198030.60 6 +277757.28 1810.0 – C57
2018-09-15 21:14:41 S 00 53 38.518 -43 38 55.97 – V C57
2018-09-15 21:14:41 s 1 -199756.96 5 +273930.46 8610.0 – C57
2018-09-15 22:14:41 S 00 53 31.166 -43 37 43.75 – V C57
2018-09-15 22:14:41 s 1 -200877.01 0 +271336.82 1450.0 – C57
2018-09-15 23:14:41 S 00 53 22.860 -43 36 28.30 – V C57
2018-09-15 23:14:41 s 1 -201971.91 0 +268709.19 2340.0 – C57
2018-09-15 23:44:41 S 00 53 19.044 -43 35 39.77 – V C57
2018-09-15 23:44:41 s 1 -202509.80 4 +267382.63 7600.0 – C57
2018-09-16 00:14:41 S 00 53 14.434 -43 34 59.12 – V C57
2018-09-16 00:14:41 s 1 -203041.26 1 +266047.57 9010.0 – C57
2018-09-16 00:44:41 S 00 53 11.100 -43 34 27.52 – V C57
2018-09-16 00:44:41 s 1 -203566.22 9 +264704.00 6300.0 – C57
2018-09-16 02:14:41 S 00 52 59.338 -43 32 29.98 – V C57
2018-09-16 02:14:41 s 1 -205101.67 2 +260622.22 390.0 – C57
2018-09-16 03:14:41 S 00 52 51.502 -43 31 08.18 – V C57
2018-09-16 03:14:41 s 1 -206091.88 5 +257858.45 320.0 – C57
2018-09-16 04:14:41 S 00 52 43.313 -43 29 51.36 – V C57
2018-09-16 04:14:41 s 1 -207054.85 9 +255060.59 6470.0 – C57
2018-09-16 04:44:41 S 00 52 40.217 -43 29 18.53 – V C57
2018-09-16 04:44:41 s 1 -207525.99 2 +253648.86 9840.0 – C57
2018-09-16 05:44:41 S 00 52 32.474 -43 28 00.62 – V C57
2018-09-16 05:44:41 s 1 -208447.26 6 +250799.82 5570.0 – C57
2018-09-16 07:14:41 S 00 52 20.496 -43 25 57.04 – V C57
2018-09-16 07:14:41 s 1 -209775.83 3 +246462.21 6760.0 – C57
2018-09-16 09:14:41 S 00 52 05.371 -43 23 24.79 – V C57
2018-09-16 09:14:41 s 1 -211445.17 9 +240559.11 350.0 – C57
2018-09-16 10:44:41 S 00 51 53.280 -43 21 24.95 – V C57
2018-09-16 10:44:41 s 1 -212618.47 9 +236041.98 7380.0 – C57
2018-09-16 11:14:41 S 00 51 49.620 -43 20 44.16 – V C57
2018-09-16 11:14:41 s 1 -212994.24 9 +234519.15 4820.0 – C57
2018-09-16 11:44:41 S 00 51 45.888 -43 20 02.90 – V C57