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
2022-01-03 12:23:53 S 07 19 50.609 +39 24 57.67 V C57
2022-01-03 12:23:53 s 1 +136425.50 2 +306789.49 5980.0 C57
2022-01-03 12:33:53 S 07 19 48.979 +39 24 38.81 V C57
2022-01-03 12:33:53 s 1 +136157.51 6 +307207.98 1980.0 C57
2022-01-03 12:43:53 S 07 19 47.472 +39 24 21.71 V C57
2022-01-03 12:43:53 s 1 +135889.02 2 +307625.37 6090.0 C57
2022-01-03 12:53:53 S 07 19 45.859 +39 24 03.13 V C57
2022-01-03 12:53:53 s 1 +135620.00 8 +308041.63 8250.0 C57
2022-01-03 13:03:53 S 07 19 44.270 +39 23 45.42 V C57
2022-01-03 13:03:53 s 1 +135349.81 1 +308456.42 5600.0 C57
2022-01-03 13:13:53 S 07 19 42.545 +39 23 25.62 V C57
2022-01-03 13:13:53 s 1 +135079.84 3 +308870.47 4260.0 C57
2022-01-03 13:23:53 S 07 19 40.901 +39 23 07.12 V C57
2022-01-03 13:23:53 s 1 +134809.33 0 +309283.39 870.0 C57
2022-01-03 13:33:53 S 07 19 39.396 +39 22 49.69 V C57
2022-01-03 13:33:53 s 1 +134538.32 8 +309695.23 5660.0 C57
2022-01-03 13:43:53 S 07 19 37.723 +39 22 30.72 V C57
2022-01-03 13:43:53 s 1 +134266.82 2 +310105.93 8590.0 C57
2022-01-03 13:53:53 S 07 19 36.108 +39 22 12.22 V C57
2022-01-03 13:53:53 s 1 +133994.82 0 +310515.53 9670.0 C57
2022-01-03 14:03:53 S 07 19 34.433 +39 21 53.24 V C57
2022-01-03 14:03:53 s 1 +133722.33 6 +310924.04 8970.0 C57
2022-01-03 14:13:53 S 07 19 32.813 +39 21 35.50 V C57
2022-01-03 14:13:53 s 1 +133449.35 3 +311331.42 6430.0 C57
2022-01-03 14:23:53 S 07 19 31.248 +39 21 17.50 V C57
2022-01-03 14:23:53 s 1 +133175.88 1 +311737.70 2070.0 C57
2022-01-03 14:33:53 S 07 19 29.592 +39 20 57.77 V C57
2022-01-03 14:33:53 s 1 +132901.93 2 +312142.89 5950.0 C57
2022-01-03 14:43:53 S 07 19 28.109 +39 20 39.98 V C57
2022-01-03 14:43:53 s 1 +132627.49 1 +312546.96 8010.0 C57
2022-01-03 14:53:53 S 07 19 26.376 +39 20 21.73 V C57
2022-01-03 14:53:53 s 1 +132352.56 6 +312949.93 8280.0 C57
2022-01-03 15:03:53 S 07 19 24.722 +39 20 03.37 V C57
2022-01-03 15:03:53 s 1 +132077.16 9 +313351.81 6820.0 C57
2022-01-03 15:13:53 S 07 19 23.136 +39 19 45.55 V C57
2022-01-03 15:13:53 s 1 +131801.28 7 +313752.58 3560.0 C57
2022-01-03 15:23:53 S 07 19 21.511 +39 19 27.37 V C57
2022-01-03 15:23:53 s 1 +131524.92 7 +314152.25 8540.0 C57
2022-01-03 15:33:53 S 07 19 19.819 +39 19 07.61 V C57
2022-01-03 15:33:53 s 1 +131248.10 2 +314550.83 1800.0 C57
2022-01-03 15:43:53 S 07 19 18.262 +39 18 50.04 V C57
2022-01-03 15:43:53 s 1 +130970.79 6 +314948.30 3300.0 C57
2022-01-03 15:53:53 S 07 19 16.675 +39 18 30.67 V C57
2022-01-03 15:53:53 s 1 +130693.01 9 +315344.67 3050.0 C57
2022-01-03 16:03:53 S 07 19 14.993 +39 18 12.56 V C57
2022-01-03 16:03:53 s 1 +130414.78 1 +315739.97 1120.0 C57
2022-01-03 16:13:53 S 07 19 13.344 +39 17 54.24 V C57
2022-01-03 16:13:53 s 1 +130136.07 0 +316134.15 7440.0 C57
2022-01-03 16:23:53 S 07 19 11.818 +39 17 35.74 V C57
2022-01-03 16:23:53 s 1 +129856.89 2 +316527.24 2050.0 C57