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 10:13:53 S 07 16 17.050 +38 43 55.99 V C57
2022-01-04 10:13:53 s 1 +97660.469 0 +352441.11 4110.0 C57
2022-01-04 10:23:53 S 07 16 15.468 +38 43 37.78 V C57
2022-01-04 10:23:53 s 1 +97340.906 0 +352720.78 5770.0 C57
2022-01-04 10:33:53 S 07 16 13.870 +38 43 18.80 V C57
2022-01-04 10:33:53 s 1 +97021.056 0 +352999.46 6470.0 C57
2022-01-04 10:43:53 S 07 16 12.254 +38 42 59.80 V C57
2022-01-04 10:43:53 s 1 +96700.908 0 +353277.12 6180.0 C57
2022-01-04 10:53:53 S 07 16 10.534 +38 42 39.60 V C57
2022-01-04 10:53:53 s 1 +96380.468 0 +353553.76 4920.0 C57
2022-01-04 11:03:53 S 07 16 08.957 +38 42 21.89 V C57
2022-01-04 11:03:53 s 1 +96059.744 0 +353829.40 2700.0 C57
2022-01-04 11:13:53 S 07 16 07.238 +38 42 01.55 V C57
2022-01-04 11:13:53 s 1 +95738.727 0 +354104.03 9510.0 C57
2022-01-04 11:23:53 S 07 16 05.587 +38 41 42.58 V C57
2022-01-04 11:23:53 s 1 +95417.422 0 +354377.64 5360.0 C57
2022-01-04 11:33:53 S 07 16 03.989 +38 41 23.42 V C57
2022-01-04 11:33:53 s 1 +95095.836 0 +354650.26 270.0 C57
2022-01-04 11:43:53 S 07 16 02.326 +38 41 04.02 V C57
2022-01-04 11:43:53 s 1 +94773.961 0 +354921.87 4230.0 C57
2022-01-04 11:53:53 S 07 16 00.684 +38 40 44.26 V C57
2022-01-04 11:53:53 s 1 +94451.802 0 +355192.46 7250.0 C57
2022-01-04 12:03:53 S 07 15 59.074 +38 40 24.56 V C57
2022-01-04 12:03:53 s 1 +94129.366 0 +355462.06 9340.0 C57
2022-01-04 12:13:53 S 07 15 57.341 +38 40 05.81 V C57
2022-01-04 12:13:53 s 1 +93806.644 0 +355730.64 500.0 C57
2022-01-04 12:23:53 S 07 15 55.687 +38 39 46.73 V C57
2022-01-04 12:23:53 s 1 +93483.643 0 +355998.22 730.0 C57
2022-01-04 12:33:53 S 07 15 54.086 +38 39 27.40 V C57
2022-01-04 12:33:53 s 1 +93160.368 0 +356264.81 60.0 C57
2022-01-04 12:43:53 S 07 15 52.440 +38 39 08.21 V C57
2022-01-04 12:43:53 s 1 +92836.812 0 +356530.38 8460.0 C57
2022-01-04 12:53:53 S 07 15 50.851 +38 38 48.84 V C57
2022-01-04 12:53:53 s 1 +92512.979 0 +356794.94 5950.0 C57
2022-01-04 13:03:53 S 07 15 49.212 +38 38 29.29 V C57
2022-01-04 13:03:53 s 1 +92188.877 0 +357058.52 2560.0 C57
2022-01-04 13:13:53 S 07 15 47.515 +38 38 09.31 V C57
2022-01-04 13:13:53 s 1 +91864.497 0 +357321.08 8260.0 C57
2022-01-04 13:23:53 S 07 15 45.790 +38 37 50.84 V C57
2022-01-04 13:23:53 s 1 +91539.845 0 +357582.64 3060.0 C57
2022-01-04 13:33:53 S 07 15 44.189 +38 37 31.15 V C57
2022-01-04 13:33:53 s 1 +91214.926 0 +357843.21 7000.0 C57
2022-01-04 13:43:53 S 07 15 42.648 +38 37 11.93 V C57
2022-01-04 13:43:53 s 1 +90889.735 0 +358102.77 40.0 C57
2022-01-04 13:53:53 S 07 15 40.975 +38 36 50.98 V C57
2022-01-04 13:53:53 s 1 +90564.274 0 +358361.33 2200.0 C57
2022-01-04 14:03:53 S 07 15 39.336 +38 36 33.08 V C57
2022-01-04 14:03:53 s 1 +90238.550 0 +358618.91 3510.0 C57
2022-01-04 14:13:53 S 07 15 37.728 +38 36 12.10 V C57
2022-01-04 14:13:53 s 1 +89912.557 0 +358875.47 3940.0 C57