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
2018-09-13 06:14:41 s 1 -91992.384 0 +369317.66 9400.0 – C57
2018-09-13 07:14:41 S 01 02 08.676 -44 56 56.54 – V C57
2018-09-13 07:14:41 s 1 -94113.207 0 +368855.06 860.0 – C57
2018-09-13 08:14:41 S 01 02 00.062 -44 55 42.60 – V C57
2018-09-13 08:14:41 s 1 -96225.099 0 +368357.87 8950.0 – C57
2018-09-13 08:44:41 S 01 01 55.963 -44 55 06.96 – V C57
2018-09-13 08:44:41 s 1 -97277.635 0 +368096.33 7120.0 – C57
2018-09-13 09:14:41 S 01 01 51.888 -44 54 31.36 – V C57
2018-09-13 09:14:41 s 1 -98327.867 0 +367826.17 4900.0 – C57
2018-09-13 11:14:41 S 01 01 34.598 -44 52 07.07 – V C57
2018-09-13 11:14:41 s 1 -102505.26 1 +366659.43 4750.0 – C57
2018-09-13 12:14:41 S 01 01 26.791 -44 50 55.14 – V C57
2018-09-13 12:14:41 s 1 -104579.50 1 +366024.50 7900.0 – C57
2018-09-13 12:44:41 S 01 01 22.032 -44 50 14.75 – V C57
2018-09-13 12:44:41 s 1 -105612.92 2 +365694.17 8520.0 – C57
2018-09-13 13:14:41 S 01 01 17.556 -44 49 38.42 – V C57
2018-09-13 13:14:41 s 1 -106643.84 4 +365355.27 8310.0 – C57
2018-09-13 14:14:41 S 01 01 09.005 -44 48 23.69 – V C57
2018-09-13 14:14:41 s 1 -108698.09 6 +364651.79 4740.0 – C57
2018-09-13 14:44:41 S 01 01 04.706 -44 47 50.50 – V C57
2018-09-13 14:44:41 s 1 -109721.37 7 +364287.22 1080.0 – C57
2018-09-13 15:14:41 S 01 01 00.679 -44 47 17.12 – V C57
2018-09-13 15:14:41 s 1 -110742.06 1 +363914.10 5980.0 – C57
2018-09-13 15:44:41 S 01 00 56.278 -44 46 35.29 – V C57
2018-09-13 15:44:41 s 1 -111760.12 5 +363532.44 9260.0 – C57
2018-09-13 16:14:41 S 01 00 52.174 -44 46 01.38 – V C57
2018-09-13 16:14:41 s 1 -112775.54 3 +363142.25 790.0 – C57
2018-09-13 16:44:41 S 01 00 47.484 -44 45 19.40 – V C57
2018-09-13 16:44:41 s 1 -113788.29 1 +362743.53 400.0 – C57
2018-09-13 18:14:41 S 01 00 35.006 -44 43 31.30 – V C57
2018-09-13 18:14:41 s 1 -116810.26 7 +361496.24 6220.0 – C57
2018-09-13 19:14:41 S 01 00 26.959 -44 42 24.66 – V C57
2018-09-13 19:14:41 s 1 -118809.93 0 +360621.32 1770.0 – C57
2018-09-13 20:14:41 S 01 00 18.535 -44 41 09.02 – V C57
2018-09-13 20:14:41 s 1 -120799.49 1 +359713.23 8550.0 – C57
2018-09-13 20:44:41 S 01 00 14.282 -44 40 34.54 – V C57
2018-09-13 20:44:41 s 1 -121789.97 9 +359246.45 7290.0 – C57
2018-09-13 22:14:41 S 01 00 01.478 -44 38 34.80 – V C57
2018-09-13 22:14:41 s 1 -124743.97 0 +357795.21 3040.0 – C57
2018-09-13 23:14:41 S 00 59 52.752 -44 37 23.92 – V C57
2018-09-13 23:14:41 s 1 -126698.48 1 +356785.34 8260.0 – C57
2018-09-14 01:44:41 S 00 59 31.584 -44 34 13.26 – V C57
2018-09-14 01:44:41 s 1 -131531.40 3 +354112.60 6990.0 – C57
2018-09-14 02:14:41 S 00 59 28.274 -44 33 42.88 – V C57
2018-09-14 02:14:41 s 1 -132488.63 2 +353552.70 730.0 – C57
2018-09-14 02:44:41 S 00 59 23.741 -44 33 05.87 – V C57
2018-09-14 02:44:41 s 1 -133442.68 2 +352984.35 9430.0 – C57
2018-09-14 03:14:41 S 00 59 19.282 -44 32 26.92 – V C57
2018-09-14 03:14:41 s 1 -134393.52 5 +352407.56 2920.0 – C57
2018-09-14 03:44:41 S 00 59 15.053 -44 31 48.22 – V C57