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
2022-01-06 13:53:53 S 07 07 43.874 +36 59 08.30 V C57
2022-01-06 13:53:53 s 1 -10048.396 0 +392912.96 8710.0 C57
2022-01-06 14:03:53 S 07 07 42.238 +36 58 46.67 V C57
2022-01-06 14:03:53 s 1 -10408.392 0 +392898.26 3430.0 C57
2022-01-06 14:13:53 S 07 07 40.430 +36 58 26.54 V C57
2022-01-06 14:13:53 s 1 -10768.376 0 +392882.64 7800.0 C57
2022-01-06 14:33:53 S 07 07 37.130 +36 57 43.78 V C57
2022-01-06 14:33:53 s 1 -11488.308 0 +392848.66 5500.0 C57
2022-01-06 14:43:53 S 07 07 35.587 +36 57 22.00 V C57
2022-01-06 14:43:53 s 1 -11848.254 0 +392830.29 8820.0 C57
2022-01-06 14:53:53 S 07 07 33.914 +36 57 01.22 V C57
2022-01-06 14:53:53 s 1 -12208.184 0 +392811.00 1790.0 C57
2022-01-06 15:03:53 S 07 07 32.309 +36 56 39.05 V C57
2022-01-06 15:03:53 s 1 -12568.100 0 +392790.80 4390.0 C57
2022-01-06 15:13:53 S 07 07 30.557 +36 56 17.59 V C57
2022-01-06 15:13:53 s 1 -12927.999 0 +392769.68 6620.0 C57
2022-01-06 15:23:53 S 07 07 28.822 +36 55 55.60 V C57
2022-01-06 15:23:53 s 1 -13287.881 0 +392747.64 8490.0 C57
2022-01-06 15:33:53 S 07 07 27.312 +36 55 34.64 V C57
2022-01-06 15:33:53 s 1 -13647.744 0 +392724.69 9980.0 C57
2022-01-06 15:43:53 S 07 07 25.522 +36 55 13.01 V C57
2022-01-06 15:43:53 s 1 -14007.589 0 +392700.82 1090.0 C57
2022-01-06 15:53:53 S 07 07 23.844 +36 54 52.85 V C57
2022-01-06 15:53:53 s 1 -14367.414 0 +392676.03 1830.0 C57
2022-01-06 16:03:53 S 07 07 22.140 +36 54 30.49 V C57
2022-01-06 16:03:53 s 1 -14727.218 0 +392650.33 2170.0 C57
2022-01-06 16:13:53 S 07 07 20.616 +36 54 09.61 V C57
2022-01-06 16:13:53 s 1 -15087.001 0 +392623.71 2130.0 C57
2022-01-06 16:23:53 S 07 07 18.893 +36 53 49.16 V C57
2022-01-06 16:23:53 s 1 -15446.762 0 +392596.17 1700.0 C57
2022-01-06 16:33:53 S 07 07 17.196 +36 53 25.55 V C57
2022-01-06 16:33:53 s 1 -15806.499 0 +392567.72 870.0 C57
2022-01-06 16:43:53 S 07 07 15.545 +36 53 04.13 V C57
2022-01-06 16:43:53 s 1 -16166.213 0 +392538.35 9650.0 C57
2022-01-06 16:53:53 S 07 07 13.783 +36 52 42.96 V C57
2022-01-06 16:53:53 s 1 -16525.901 0 +392508.06 8010.0 C57
2022-01-06 17:03:53 S 07 07 12.271 +36 52 21.97 V C57
2022-01-06 17:03:53 s 1 -16885.564 0 +392476.85 5970.0 C57
2022-01-06 17:13:53 S 07 07 10.642 +36 52 01.70 V C57
2022-01-06 17:13:53 s 1 -17245.200 0 +392444.73 3520.0 C57
2022-01-06 17:23:53 S 07 07 09.067 +36 51 40.43 V C57
2022-01-06 17:23:53 s 1 -17604.809 0 +392411.70 650.0 C57
2022-01-06 17:33:53 S 07 07 07.306 +36 51 16.92 V C57
2022-01-06 17:33:53 s 1 -17964.389 0 +392377.74 7370.0 C57
2022-01-06 17:43:53 S 07 07 05.635 +36 50 57.01 V C57
2022-01-06 17:43:53 s 1 -18323.941 0 +392342.87 3660.0 C57
2022-01-06 17:53:53 S 07 07 04.046 +36 50 35.66 V C57
2022-01-06 17:53:53 s 1 -18683.462 0 +392307.08 9520.0 C57
2022-01-06 18:03:53 S 07 07 02.251 +36 50 13.56 V C57
2022-01-06 18:03:53 s 1 -19042.953 0 +392270.38 4960.0 C57