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
2022-01-01 13:33:53 S 07 27 12.082 +40 45 53.17 V C57
2022-01-01 13:33:53 s 1 +180230.04 0 +140633.88 3790.0 C57
2022-01-01 13:43:53 S 07 27 10.656 +40 45 36.76 V C57
2022-01-01 13:43:53 s 1 +180245.07 1 +141413.51 3790.0 C57
2022-01-01 13:53:53 S 07 27 09.079 +40 45 23.08 V C57
2022-01-01 13:53:53 s 1 +180258.24 1 +142191.69 6160.0 C57
2022-01-01 14:03:53 S 07 27 07.567 +40 45 07.52 V C57
2022-01-01 14:03:53 s 1 +180269.56 0 +142968.41 930.0 C57
2022-01-01 14:13:53 S 07 27 05.950 +40 44 48.70 V C57
2022-01-01 14:13:53 s 1 +180279.03 7 +143743.69 8150.0 C57
2022-01-01 14:23:53 S 07 27 04.603 +40 44 32.89 V C57
2022-01-01 14:23:53 s 1 +180286.68 4 +144517.51 7870.0 C57
2022-01-01 14:33:53 S 07 27 03.132 +40 44 13.38 V C57
2022-01-01 14:33:53 s 1 +180292.51 1 +145289.89 120.0 C57
2022-01-01 14:53:53 S 07 27 01.733 +40 43 35.04 V C57
2022-01-01 14:53:53 s 1 +180298.74 4 +146830.31 2410.0 C57
2022-01-01 15:03:53 S 07 26 58.414 +40 43 22.66 V C57
2022-01-01 15:03:53 s 1 +180299.17 1 +147598.35 2540.0 C57
2022-01-01 15:13:53 S 07 26 56.990 +40 43 10.85 V C57
2022-01-01 15:13:53 s 1 +180297.81 8 +148364.94 5380.0 C57
2022-01-01 15:23:53 S 07 26 55.430 +40 42 54.83 V C57
2022-01-01 15:23:53 s 1 +180294.69 5 +149130.08 970.0 C57
2022-01-01 15:33:53 S 07 26 53.971 +40 42 39.35 V C57
2022-01-01 15:33:53 s 1 +180289.81 1 +149893.78 9360.0 C57
2022-01-01 15:43:53 S 07 26 52.390 +40 42 22.00 V C57
2022-01-01 15:43:53 s 1 +180283.17 8 +150656.04 590.0 C57
2022-01-01 15:53:53 S 07 26 50.890 +40 42 05.58 V C57
2022-01-01 15:53:53 s 1 +180274.80 3 +151416.85 4690.0 C57
2022-01-01 16:03:53 S 07 26 49.267 +40 41 49.27 V C57
2022-01-01 16:03:53 s 1 +180264.69 7 +152176.23 1720.0 C57
2022-01-01 16:13:53 S 07 26 47.875 +40 41 33.32 V C57
2022-01-01 16:13:53 s 1 +180252.86 9 +152934.15 1700.0 C57
2022-01-01 16:23:53 S 07 26 46.351 +40 41 17.48 V C57
2022-01-01 16:23:53 s 1 +180239.33 0 +153690.64 4690.0 C57
2022-01-01 16:33:53 S 07 26 44.796 +40 41 01.61 V C57
2022-01-01 16:33:53 s 1 +180224.08 7 +154445.69 720.0 C57
2022-01-01 16:43:53 S 07 26 43.243 +40 40 44.47 V C57
2022-01-01 16:43:53 s 1 +180207.15 1 +155199.30 9840.0 C57
2022-01-01 16:53:53 S 07 26 41.794 +40 40 27.91 V C57
2022-01-01 16:53:53 s 1 +180188.53 0 +155951.46 2070.0 C57
2022-01-01 17:03:53 S 07 26 40.291 +40 40 11.86 V C57
2022-01-01 17:03:53 s 1 +180168.23 5 +156702.19 7470.0 C57
2022-01-01 17:13:53 S 07 26 38.770 +40 39 54.94 V C57
2022-01-01 17:13:53 s 1 +180146.27 3 +157451.49 6060.0 C57
2022-01-01 17:23:53 S 07 26 37.181 +40 39 39.17 V C57
2022-01-01 17:23:53 s 1 +180122.65 5 +158199.34 7900.0 C57
2022-01-01 17:33:53 S 07 26 35.758 +40 39 22.97 V C57
2022-01-01 17:33:53 s 1 +180097.38 8 +158945.76 3010.0 C57
2022-01-01 17:43:53 S 07 26 34.176 +40 39 06.05 V C57
2022-01-01 17:43:53 s 1 +180070.48 3 +159690.75 1440.0 C57