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 21:53:53 S 07 02 25.594 +35 49 02.53 V C57
2022-01-07 21:53:53 s 1 -77951.015 0 +373230.41 3360.0 C57
2022-01-07 22:03:53 S 07 02 23.952 +35 48 40.28 V C57
2022-01-07 22:03:53 s 1 -78292.679 0 +373038.47 9560.0 C57
2022-01-07 22:13:53 S 07 02 22.289 +35 48 17.71 V C57
2022-01-07 22:13:53 s 1 -78634.158 0 +372845.60 4640.0 C57
2022-01-07 22:23:53 S 07 02 20.515 +35 47 56.26 V C57
2022-01-07 22:23:53 s 1 -78975.448 0 +372651.80 8570.0 C57
2022-01-07 22:33:53 S 07 02 18.979 +35 47 34.48 V C57
2022-01-07 22:33:53 s 1 -79316.551 0 +372457.05 1370.0 C57
2022-01-07 22:43:53 S 07 02 17.302 +35 47 10.54 V C57
2022-01-07 22:43:53 s 1 -79657.464 0 +372261.36 3020.0 C57
2022-01-07 22:53:53 S 07 02 15.730 +35 46 47.53 V C57
2022-01-07 22:53:53 s 1 -79998.187 0 +372064.73 3520.0 C57
2022-01-07 23:03:53 S 07 02 13.954 +35 46 25.93 V C57
2022-01-07 23:03:53 s 1 -80338.718 0 +371867.17 2870.0 C57
2022-01-07 23:08:00 C 07 02 08.42 +35 37 52.1 V L93
2022-01-07 23:13:53 S 07 02 12.269 +35 46 04.01 V C57
2022-01-07 23:13:53 s 1 -80679.056 0 +371668.66 1060.0 C57
2022-01-07 23:19:09 C 07 02 06.64 +35 37 27.8 V L93
2022-01-07 23:23:53 S 07 02 10.663 +35 45 41.76 V C57
2022-01-07 23:23:53 s 1 -81019.202 0 +371469.21 8080.0 C57
2022-01-07 23:28:59 C 07 02 05.03 +35 37 06.3 V L93
2022-01-07 23:33:53 S 07 02 08.988 +35 45 17.68 V C57
2022-01-07 23:33:53 s 1 -81359.152 0 +371268.83 3930.0 C57
2022-01-07 23:35:59 C 07 02 03.93 +35 36 51.1 V L93
2022-01-07 23:43:53 S 07 02 07.327 +35 44 56.04 V C57
2022-01-07 23:43:53 s 1 -81698.907 0 +371067.50 8610.0 C57
2022-01-07 23:48:36 C 07 02 01.89 +35 36 23.1 V L93
2022-01-07 23:53:53 S 07 02 05.734 +35 44 33.94 V C57
2022-01-07 23:53:53 s 1 -82038.465 0 +370865.23 2110.0 C57
2022-01-08 00:03:53 S 07 02 04.027 +35 44 10.72 V C57
2022-01-08 00:03:53 s 1 -82377.826 0 +370662.02 4420.0 C57
2022-01-08 00:05:30 C 07 01 59.21 +35 35 45.9 V L93
2022-01-08 00:13:53 S 07 02 02.414 +35 43 47.71 V C57
2022-01-08 00:13:53 s 1 -82716.987 0 +370457.86 5550.0 C57
2022-01-08 00:18:08 C 07 01 57.19 +35 35 17.4 V L93
2022-01-08 00:23:53 S 07 02 00.802 +35 43 25.61 V C57
2022-01-08 00:23:53 s 1 -83055.949 0 +370252.77 5480.0 C57
2022-01-08 00:31:58 C 07 01 54.94 +35 34 47.2 V L93
2022-01-08 00:33:53 S 07 01 59.095 +35 43 03.11 V C57
2022-01-08 00:33:53 s 1 -83394.710 0 +370046.73 4220.0 C57
2022-01-08 00:43:53 S 07 01 57.538 +35 42 39.96 V C57
2022-01-08 00:43:53 s 1 -83733.269 0 +369839.75 1750.0 C57
2022-01-08 00:47:53 C 07 01 52.40 +35 34 12.3 V L93
2022-01-08 00:53:53 S 07 01 55.853 +35 42 17.32 V C57
2022-01-08 00:53:53 s 1 -84071.624 0 +369631.82 8070.0 C57
2022-01-08 01:03:53 S 07 01 54.166 +35 41 54.64 V C57
2022-01-08 01:03:53 s 1 -84409.776 0 +369422.96 3190.0 C57
2022-01-08 01:13:53 S 07 01 52.464 +35 41 31.81 V C57