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 22:43:53 S 07 14 13.476 +38 19 33.74 V C57
2022-01-04 22:43:53 s 1 +72962.380 0 +370648.94 9170.0 C57
2022-01-04 22:53:53 S 07 14 11.918 +38 19 14.48 V C57
2022-01-04 22:53:53 s 1 +72624.186 0 +370854.31 1590.0 C57
2022-01-04 23:03:53 S 07 14 10.250 +38 18 55.48 V C57
2022-01-04 23:03:53 s 1 +72285.792 0 +371058.72 3420.0 C57
2022-01-04 23:13:53 S 07 14 08.690 +38 18 35.24 V C57
2022-01-04 23:13:53 s 1 +71947.190 0 +371262.14 4650.0 C57
2022-01-04 23:23:53 S 07 14 06.953 +38 18 15.37 V C57
2022-01-04 23:23:53 s 1 +71608.386 0 +371464.59 5280.0 C57
2022-01-04 23:33:53 S 07 14 05.328 +38 17 55.28 V C57
2022-01-04 23:33:53 s 1 +71269.383 0 +371666.09 5330.0 C57
2022-01-04 23:43:53 S 07 14 03.619 +38 17 35.95 V C57
2022-01-04 23:43:53 s 1 +70930.178 0 +371866.60 4780.0 C57
2022-01-04 23:53:53 S 07 14 01.992 +38 17 15.36 V C57
2022-01-04 23:53:53 s 1 +70590.772 0 +372066.14 3660.0 C57
2022-01-05 00:03:53 S 07 14 00.372 +38 16 56.35 V C57
2022-01-05 00:03:53 s 1 +70251.171 0 +372264.73 1970.0 C57
2022-01-05 00:13:53 S 07 13 58.685 +38 16 36.44 V C57
2022-01-05 00:13:53 s 1 +69911.371 0 +372462.33 9700.0 C57
2022-01-05 00:23:53 S 07 13 57.050 +38 16 16.25 V C57
2022-01-05 00:23:53 s 1 +69571.373 0 +372658.97 6870.0 C57
2022-01-05 00:33:53 S 07 13 55.445 +38 15 57.06 V C57
2022-01-05 00:33:53 s 1 +69231.184 0 +372854.65 3480.0 C57
2022-01-05 00:43:53 S 07 13 53.782 +38 15 36.32 V C57
2022-01-05 00:43:53 s 1 +68890.798 0 +373049.35 9530.0 C57
2022-01-05 00:53:53 S 07 13 52.128 +38 15 17.03 V C57
2022-01-05 00:53:53 s 1 +68550.218 0 +373243.09 5020.0 C57
2022-01-05 01:03:53 S 07 13 50.537 +38 14 57.48 V C57
2022-01-05 01:03:53 s 1 +68209.450 0 +373435.87 9980.0 C57
2022-01-05 01:13:53 S 07 13 48.818 +38 14 38.00 V C57
2022-01-05 01:13:53 s 1 +67868.489 0 +373627.67 4390.0 C57
2022-01-05 01:23:53 S 07 13 47.117 +38 14 17.48 V C57
2022-01-05 01:23:53 s 1 +67527.336 0 +373818.51 8250.0 C57
2022-01-05 01:33:53 S 07 13 45.463 +38 13 56.82 V C57
2022-01-05 01:33:53 s 1 +67185.999 0 +374008.39 1590.0 C57
2022-01-05 01:43:53 S 07 13 43.906 +38 13 38.42 V C57
2022-01-05 01:43:53 s 1 +66844.471 0 +374197.30 4390.0 C57
2022-01-05 01:53:53 S 07 13 42.262 +38 13 18.05 V C57
2022-01-05 01:53:53 s 1 +66502.755 0 +374385.24 6670.0 C57
2022-01-05 02:03:53 S 07 13 40.490 +38 12 58.25 V C57
2022-01-05 02:03:53 s 1 +66160.858 0 +374572.23 8440.0 C57
2022-01-05 02:13:53 S 07 13 38.976 +38 12 38.70 V C57
2022-01-05 02:13:53 s 1 +65818.773 0 +374758.25 9680.0 C57
2022-01-05 02:23:53 S 07 13 37.320 +38 12 18.61 V C57
2022-01-05 02:23:53 s 1 +65476.503 0 +374943.30 410.0 C57
2022-01-05 02:33:53 S 07 13 35.558 +38 11 57.70 V C57
2022-01-05 02:33:53 s 1 +65134.055 0 +375127.40 640.0 C57
2022-01-05 02:43:53 S 07 13 33.946 +38 11 38.65 V C57
2022-01-05 02:43:53 s 1 +64791.422 0 +375310.53 360.0 C57