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
2018-08-25 02:14:41 s 1 +132535.60 4 +163047.60 0.577 – C57
2018-08-25 04:14:41 S 02 02 02.383 -50 21 52.20 – V C57
2018-08-25 04:14:41 s 1 +130160.27 8 +172234.26 0.356 – C57
2018-08-25 05:44:41 S 02 01 51.295 -50 21 20.92 – V C57
2018-08-25 05:44:41 s 1 +128250.37 3 +178956.10 0.599 – C57
2018-08-25 06:14:41 S 02 01 47.045 -50 21 15.16 – V C57
2018-08-25 06:14:41 s 1 +127590.60 0 +181164.94 0.348 – C57
2018-08-25 07:14:41 S 02 01 40.399 -50 20 55.18 – V C57
2018-08-25 07:14:41 s 1 +126237.75 0 +185535.29 0.23 – C57
2018-08-25 07:44:41 S 02 01 36.766 -50 20 46.97 – V C57
2018-08-25 07:44:41 s 1 +125545.12 1 +187696.90 0.648 – C57
2018-08-25 09:14:41 S 02 01 25.889 -50 20 09.17 – V C57
2018-08-25 09:14:41 s 1 +123405.01 1 +194088.14 0.459 – C57
2018-08-25 09:44:41 S 02 01 22.385 -50 20 00.28 – V C57
2018-08-25 09:44:41 s 1 +122671.59 1 +196187.55 0.356 – C57
2018-08-25 10:44:41 S 02 01 14.887 -50 19 47.32 – V C57
2018-08-25 10:44:41 s 1 +121175.87 3 +200340.19 0.362 – C57
2018-08-25 12:44:41 S 02 01 00.725 -50 19 00.08 – V C57
2018-08-25 12:44:41 s 1 +118074.21 5 +208462.45 0.63 – C57
2018-08-25 16:14:41 S 02 00 35.258 -50 17 37.93 – V C57
2018-08-25 16:14:41 s 1 +112321.93 9 +222099.13 0.47 – C57
2018-08-25 16:44:41 S 02 00 31.370 -50 17 32.24 – V C57
2018-08-25 16:44:41 s 1 +111469.08 9 +223988.21 0.65 – C57
2018-08-25 17:14:41 S 02 00 28.152 -50 17 18.06 – V C57
2018-08-25 17:14:41 s 1 +110608.92 1 +225862.72 0.074 – C57
2018-08-25 18:44:41 S 02 00 17.443 -50 16 44.69 – V C57
2018-08-25 18:44:41 s 1 +107985.94 3 +231399.41 0.77 – C57
2018-08-25 21:44:41 S 01 59 55.721 -50 15 34.27 – V C57
2018-08-25 21:44:41 s 1 +102561.04 3 +242087.40 0.212 – C57
2018-08-26 01:14:41 S 01 59 30.492 -50 14 07.19 – V C57
2018-08-26 01:14:41 s 1 +95960.728 0 +253921.48 5770.0 – C57
2018-08-26 01:44:41 S 01 59 26.834 -50 14 00.46 – V C57
2018-08-26 01:44:41 s 1 +94996.127 0 +255557.30 5620.0 – C57
2018-08-26 02:14:41 S 01 59 22.766 -50 13 46.49 – V C57
2018-08-26 02:14:41 s 1 +94026.423 0 +257179.59 2860.0 – C57
2018-08-26 02:44:41 S 01 59 19.229 -50 13 30.50 – V C57
2018-08-26 02:44:41 s 1 +93051.719 0 +258788.41 8200.0 – C57
2018-08-26 03:44:41 S 01 59 12.641 -50 13 07.36 – V C57
2018-08-26 03:44:41 s 1 +91087.711 0 +261965.88 5910.0 – C57
2018-08-26 05:14:41 S 01 59 01.750 -50 12 35.96 – V C57
2018-08-26 05:14:41 s 1 +88106.653 0 +266632.45 110.0 – C57
2018-08-26 05:44:41 S 01 58 57.658 -50 12 14.76 – V C57
2018-08-26 05:44:41 s 1 +87103.999 0 +268161.61 8150.0 – C57
2018-08-26 07:14:41 S 01 58 47.273 -50 11 37.68 – V C57
2018-08-26 07:14:41 s 1 +84070.400 0 +272670.80 1020.0 – C57
2018-08-26 07:44:41 S 01 58 43.399 -50 11 27.71 – V C57
2018-08-26 07:44:41 s 1 +83050.947 0 +274147.93 3590.0 – C57
2018-08-26 08:14:41 S 01 58 39.552 -50 11 14.21 – V C57
2018-08-26 08:14:41 s 1 +82027.509 0 +275612.18 1280.0 – C57
2018-08-26 08:44:41 S 01 58 36.163 -50 11 02.80 – V C57