18882 (1999 YN4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2321218724 ± 9.10e-09
Semi-major axis (a)1.6850068777 AU ± 1.15e-09
Inclination (i)36.81465272° ± 5.29e-07
Long. of Asc. Node (Ω)291.66685521° ± 7.61e-07
Arg. of Perihelion (ω)242.66795075° ± 2.19e-06
Mean Anomaly (M)230.13214226° ± 2.27e-06
Mean Motion (n)0.4506192696°/day ± 4.60e-10
Perihelion dist (q)1.29387993 AU ± 1.54e-08
Aphelion dist (Q)2.07613383 AU ± 1.54e-08
Orbital Period2.18727061 yr ± 2.23e-09
Physical Parameters
H (abs. magnitude)16.14
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.067″
Uncertainty0
Orbit TypeAmor
MOID0.430698 AU
Observations Used2638
Gaia Obs Used122
Oppositions34
Arc Total1954-2025
First Observation Used1954-01-04
Last Observation Used2025-12-18
Observations (4085)
Date Type RA Dec Mag Band Observatory
2022-01-07 04:53:53 S 07 05 14.414 +36 26 44.70 V C57
2022-01-07 04:53:53 s 1 -42302.416 0 +387917.03 9750.0 C57
2022-01-07 05:03:53 S 07 05 12.785 +36 26 24.14 V C57
2022-01-07 05:03:53 s 1 -42657.960 0 +387819.75 8200.0 C57
2022-01-07 05:13:53 S 07 05 11.088 +36 26 02.15 V C57
2022-01-07 05:13:53 s 1 -43013.416 0 +387721.55 5960.0 C57
2022-01-07 05:23:53 S 07 05 09.331 +36 25 41.23 V C57
2022-01-07 05:23:53 s 1 -43368.781 0 +387622.43 3020.0 C57
2022-01-07 05:33:11 C 07 04 53.27 +36 16 08.0 V 703
2022-01-07 05:33:53 S 07 05 07.759 +36 25 17.90 V C57
2022-01-07 05:33:53 s 1 -43724.055 0 +387522.38 9380.0 C57
2022-01-07 05:40:59 C 07 04 52.01 +36 15 51.2 V 703
2022-01-07 05:43:53 S 07 05 06.158 +36 24 55.91 V C57
2022-01-07 05:43:53 s 1 -44079.238 0 +387421.42 5040.0 C57
2022-01-07 05:48:47 C 07 04 50.77 +36 15 34.5 V 703
2022-01-07 05:53:53 S 07 05 04.378 +36 24 33.37 V C57
2022-01-07 05:53:53 s 1 -44434.328 0 +387319.54 9990.0 C57
2022-01-07 05:56:36 C 07 04 49.49 +36 15 18.5 V 703
2022-01-07 06:03:53 S 07 05 02.767 +36 24 12.02 V C57
2022-01-07 06:03:53 s 1 -44789.324 0 +387216.73 4230.0 C57
2022-01-07 06:13:53 S 07 05 01.126 +36 23 50.53 V C57
2022-01-07 06:13:53 s 1 -45144.226 0 +387113.01 7750.0 C57
2022-01-07 06:23:53 S 07 04 59.441 +36 23 29.22 V C57
2022-01-07 06:23:53 s 1 -45499.032 0 +387008.36 550.0 C57
2022-01-07 06:33:53 S 07 04 57.758 +36 23 05.32 V C57
2022-01-07 06:33:53 s 1 -45853.742 0 +386902.79 2620.0 C57
2022-01-07 06:43:53 S 07 04 56.129 +36 22 44.08 V C57
2022-01-07 06:43:53 s 1 -46208.355 0 +386796.31 3970.0 C57
2022-01-07 06:53:53 S 07 04 54.468 +36 22 22.91 V C57
2022-01-07 06:53:53 s 1 -46562.869 0 +386688.90 4580.0 C57
2022-01-07 07:03:53 S 07 04 52.841 +36 22 00.66 V C57
2022-01-07 07:03:53 s 1 -46917.285 0 +386580.57 4460.0 C57
2022-01-07 07:13:53 S 07 04 51.190 +36 21 38.88 V C57
2022-01-07 07:13:53 s 1 -47271.600 0 +386471.31 3600.0 C57
2022-01-07 07:23:53 S 07 04 49.483 +36 21 17.46 V C57
2022-01-07 07:23:53 s 1 -47625.815 0 +386361.14 1990.0 C57
2022-01-07 07:33:53 S 07 04 47.887 +36 20 55.64 V C57
2022-01-07 07:33:53 s 1 -47979.928 0 +386250.04 9630.0 C57
2022-01-07 07:43:53 S 07 04 46.243 +36 20 33.29 V C57
2022-01-07 07:43:53 s 1 -48333.939 0 +386138.03 6520.0 C57
2022-01-07 07:53:53 S 07 04 44.534 +36 20 10.82 V C57
2022-01-07 07:53:53 s 1 -48687.846 0 +386025.09 2650.0 C57
2022-01-07 08:03:53 S 07 04 42.936 +36 19 50.30 V C57
2022-01-07 08:03:53 s 1 -49041.648 0 +385911.23 8020.0 C57
2022-01-07 08:13:53 S 07 04 41.292 +36 19 28.16 V C57
2022-01-07 08:13:53 s 1 -49395.345 0 +385796.44 2620.0 C57
2022-01-07 08:23:53 S 07 04 39.612 +36 19 05.05 V C57
2022-01-07 08:23:53 s 1 -49748.936 0 +385680.74 6460.0 C57
2022-01-07 08:33:53 S 07 04 37.956 +36 18 43.27 V C57
2022-01-07 08:33:53 s 1 -50102.420 0 +385564.11 9520.0 C57