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 17:23:53 S 07 03 10.150 +35 59 08.63 V C57
2022-01-07 17:23:53 s 1 -68659.372 0 +378058.67 4840.0 C57
2022-01-07 17:33:53 S 07 03 08.508 +35 58 45.77 V C57
2022-01-07 17:33:53 s 1 -69005.683 0 +377891.99 9870.0 C57
2022-01-07 17:43:53 S 07 03 06.905 +35 58 23.74 V C57
2022-01-07 17:43:53 s 1 -69351.835 0 +377724.37 3890.0 C57
2022-01-07 17:53:53 S 07 03 05.239 +35 58 01.27 V C57
2022-01-07 17:53:53 s 1 -69697.828 0 +377555.83 6890.0 C57
2022-01-07 18:03:53 S 07 03 03.614 +35 57 38.84 V C57
2022-01-07 18:03:53 s 1 -70043.658 0 +377386.35 8880.0 C57
2022-01-07 18:13:53 S 07 03 01.896 +35 57 17.21 V C57
2022-01-07 18:13:53 s 1 -70389.327 0 +377215.94 9840.0 C57
2022-01-07 18:23:53 S 07 03 00.326 +35 56 54.28 V C57
2022-01-07 18:23:53 s 1 -70734.833 0 +377044.59 9780.0 C57
2022-01-07 18:33:53 S 07 02 58.613 +35 56 32.28 V C57
2022-01-07 18:33:53 s 1 -71080.175 0 +376872.31 8690.0 C57
2022-01-07 18:43:53 S 07 02 56.938 +35 56 09.60 V C57
2022-01-07 18:43:53 s 1 -71425.352 0 +376699.10 6560.0 C57
2022-01-07 18:53:53 S 07 02 55.279 +35 55 47.17 V C57
2022-01-07 18:53:53 s 1 -71770.362 0 +376524.96 3390.0 C57
2022-01-07 19:03:53 S 07 02 53.616 +35 55 24.89 V C57
2022-01-07 19:03:53 s 1 -72115.206 0 +376349.88 9180.0 C57
2022-01-07 19:13:53 S 07 02 51.924 +35 55 01.96 V C57
2022-01-07 19:13:53 s 1 -72459.881 0 +376173.86 3920.0 C57
2022-01-07 19:23:53 S 07 02 50.280 +35 54 40.21 V C57
2022-01-07 19:23:53 s 1 -72804.388 0 +375996.91 7600.0 C57
2022-01-07 19:33:53 S 07 02 48.622 +35 54 18.79 V C57
2022-01-07 19:33:53 s 1 -73148.724 0 +375819.03 230.0 C57
2022-01-07 19:43:53 S 07 02 46.942 +35 53 54.49 V C57
2022-01-07 19:43:53 s 1 -73492.890 0 +375640.21 1800.0 C57
2022-01-07 19:53:53 S 07 02 45.202 +35 53 33.18 V C57
2022-01-07 19:53:53 s 1 -73836.883 0 +375460.46 2290.0 C57
2022-01-07 20:03:53 S 07 02 43.627 +35 53 09.67 V C57
2022-01-07 20:03:53 s 1 -74180.703 0 +375279.77 1720.0 C57
2022-01-07 20:13:53 S 07 02 42.271 +35 52 50.34 V C57
2022-01-07 20:13:53 s 1 -74524.349 0 +375098.15 70.0 C57
2022-01-07 20:23:53 S 07 02 40.519 +35 52 27.73 V C57
2022-01-07 20:23:53 s 1 -74867.821 0 +374915.59 7340.0 C57
2022-01-07 20:33:53 S 07 02 38.722 +35 52 03.76 V C57
2022-01-07 20:33:53 s 1 -75211.116 0 +374732.10 3520.0 C57
2022-01-07 20:53:53 S 07 02 35.647 +35 51 16.13 V C57
2022-01-07 20:53:53 s 1 -75897.173 0 +374362.30 2610.0 C57
2022-01-07 21:13:53 S 07 02 32.189 +35 50 33.61 V C57
2022-01-07 21:13:53 s 1 -76582.515 0 +373988.75 7300.0 C57
2022-01-07 21:23:53 S 07 02 30.562 +35 50 11.40 V C57
2022-01-07 21:23:53 s 1 -76924.914 0 +373800.57 7990.0 C57
2022-01-07 21:33:53 S 07 02 28.788 +35 49 47.78 V C57
2022-01-07 21:33:53 s 1 -77267.131 0 +373611.45 7570.0 C57
2022-01-07 21:43:53 S 07 02 27.206 +35 49 26.29 V C57
2022-01-07 21:43:53 s 1 -77609.165 0 +373421.40 6020.0 C57