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
2022-01-04 18:33:53 S 07 14 54.857 +38 27 46.08 V C57
2022-01-04 18:33:53 s 1 +81347.426 0 +365197.55 8780.0 C57
2022-01-04 18:43:53 S 07 14 53.172 +38 27 27.14 V C57
2022-01-04 18:43:53 s 1 +81014.711 0 +365427.36 7820.0 C57
2022-01-04 18:53:53 S 07 14 51.526 +38 27 07.20 V C57
2022-01-04 18:53:53 s 1 +80681.761 0 +365656.18 6130.0 C57
2022-01-04 19:03:53 S 07 14 49.831 +38 26 47.36 V C57
2022-01-04 19:03:53 s 1 +80348.585 0 +365884.04 3730.0 C57
2022-01-04 19:13:53 S 07 14 48.223 +38 26 28.43 V C57
2022-01-04 19:13:53 s 1 +80015.175 0 +366110.90 610.0 C57
2022-01-04 19:23:53 S 07 14 46.598 +38 26 08.77 V C57
2022-01-04 19:23:53 s 1 +79681.535 0 +366336.77 6790.0 C57
2022-01-04 19:33:53 S 07 14 44.954 +38 25 48.54 V C57
2022-01-04 19:33:53 s 1 +79347.671 0 +366561.69 2270.0 C57
2022-01-04 19:43:53 S 07 14 43.370 +38 25 30.18 V C57
2022-01-04 19:43:53 s 1 +79013.577 0 +366785.60 7040.0 C57
2022-01-04 19:53:53 S 07 14 41.772 +38 25 09.44 V C57
2022-01-04 19:53:53 s 1 +78679.257 0 +367008.53 1120.0 C57
2022-01-04 20:03:53 S 07 14 40.034 +38 24 49.97 V C57
2022-01-04 20:03:53 s 1 +78344.716 0 +367230.50 4530.0 C57
2022-01-04 20:13:53 S 07 14 38.376 +38 24 30.28 V C57
2022-01-04 20:13:53 s 1 +78009.948 0 +367451.48 7240.0 C57
2022-01-04 20:23:53 S 07 14 36.701 +38 24 10.26 V C57
2022-01-04 20:23:53 s 1 +77674.957 0 +367671.47 9260.0 C57
2022-01-04 20:33:53 S 07 14 35.026 +38 23 50.78 V C57
2022-01-04 20:33:53 s 1 +77339.749 0 +367890.51 630.0 C57
2022-01-04 20:43:53 S 07 14 33.401 +38 23 30.37 V C57
2022-01-04 20:43:53 s 1 +77004.317 0 +368108.55 1320.0 C57
2022-01-04 20:53:53 S 07 14 31.735 +38 23 11.04 V C57
2022-01-04 20:53:53 s 1 +76668.666 0 +368325.60 1340.0 C57
2022-01-04 21:03:53 S 07 14 30.060 +38 22 52.39 V C57
2022-01-04 21:03:53 s 1 +76332.800 0 +368541.70 720.0 C57
2022-01-04 21:13:53 S 07 14 28.543 +38 22 32.52 V C57
2022-01-04 21:13:53 s 1 +75996.715 0 +368756.81 9430.0 C57
2022-01-04 21:23:53 S 07 14 26.813 +38 22 12.40 V C57
2022-01-04 21:23:53 s 1 +75660.413 0 +368970.94 7490.0 C57
2022-01-04 21:33:53 S 07 14 25.116 +38 21 52.38 V C57
2022-01-04 21:33:53 s 1 +75323.900 0 +369184.11 4910.0 C57
2022-01-04 21:43:53 S 07 14 23.422 +38 21 32.65 V C57
2022-01-04 21:43:53 s 1 +74987.171 0 +369396.29 1690.0 C57
2022-01-04 21:53:53 S 07 14 21.809 +38 21 13.43 V C57
2022-01-04 21:53:53 s 1 +74650.229 0 +369607.49 7830.0 C57
2022-01-04 22:03:53 S 07 14 20.242 +38 20 53.34 V C57
2022-01-04 22:03:53 s 1 +74313.079 0 +369817.74 3340.0 C57
2022-01-04 22:13:53 S 07 14 18.533 +38 20 33.90 V C57
2022-01-04 22:13:53 s 1 +73975.717 0 +370027.00 8230.0 C57
2022-01-04 22:23:53 S 07 14 16.918 +38 20 14.14 V C57
2022-01-04 22:23:53 s 1 +73638.144 0 +370235.28 2490.0 C57
2022-01-04 22:33:53 S 07 14 15.305 +38 19 53.65 V C57
2022-01-04 22:33:53 s 1 +73300.367 0 +370442.60 6140.0 C57