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
2022-01-05 02:53:53 S 07 13 32.196 +38 11 18.60 V C57
2022-01-05 02:53:53 s 1 +64448.609 0 +375492.69 9580.0 C57
2022-01-05 03:03:53 S 07 13 30.662 +38 10 59.99 V C57
2022-01-05 03:03:53 s 1 +64105.619 0 +375673.91 8320.0 C57
2022-01-05 03:13:53 S 07 13 29.064 +38 10 39.43 V C57
2022-01-05 03:13:53 s 1 +63762.448 0 +375854.16 6560.0 C57
2022-01-05 03:23:53 S 07 13 27.334 +38 10 18.59 V C57
2022-01-05 03:23:53 s 1 +63419.099 0 +376033.44 4310.0 C57
2022-01-05 03:33:53 S 07 13 25.663 +38 09 58.39 V C57
2022-01-05 03:33:53 s 1 +63075.577 0 +376211.77 1590.0 C57
2022-01-05 03:43:53 S 07 13 24.029 +38 09 38.63 V C57
2022-01-05 03:43:53 s 1 +62731.877 0 +376389.14 8390.0 C57
2022-01-05 03:53:53 S 07 13 22.399 +38 09 18.36 V C57
2022-01-05 03:53:53 s 1 +62388.003 0 +376565.54 4710.0 C57
2022-01-05 04:03:53 S 07 13 20.724 +38 08 58.70 V C57
2022-01-05 04:03:53 s 1 +62043.958 0 +376740.99 580.0 C57
2022-01-05 04:13:53 S 07 13 19.037 +38 08 39.12 V C57
2022-01-05 04:13:53 s 1 +61699.738 0 +376915.48 5980.0 C57
2022-01-05 04:23:53 S 07 13 17.400 +38 08 19.07 V C57
2022-01-05 04:23:53 s 1 +61355.347 0 +377089.00 910.0 C57
2022-01-05 04:33:53 S 07 13 15.770 +38 07 59.23 V C57
2022-01-05 04:33:53 s 1 +61010.788 0 +377261.59 5410.0 C57
2022-01-05 04:43:53 S 07 13 14.153 +38 07 38.71 V C57
2022-01-05 04:43:53 s 1 +60666.058 0 +377433.20 9440.0 C57
2022-01-05 04:53:53 S 07 13 12.463 +38 07 19.42 V C57
2022-01-05 04:53:53 s 1 +60321.158 0 +377603.85 3030.0 C57
2022-01-05 05:03:53 S 07 13 10.831 +38 06 59.26 V C57
2022-01-05 05:03:53 s 1 +59976.095 0 +377773.56 6190.0 C57
2022-01-05 05:13:53 S 07 13 09.132 +38 06 38.59 V C57
2022-01-05 05:13:53 s 1 +59630.863 0 +377942.30 8900.0 C57
2022-01-05 05:23:53 S 07 13 07.512 +38 06 18.72 V C57
2022-01-05 05:23:53 s 1 +59285.465 0 +378110.08 1180.0 C57
2022-01-05 05:33:53 S 07 13 05.890 +38 05 58.81 V C57
2022-01-05 05:33:53 s 1 +58939.906 0 +378276.92 3040.0 C57
2022-01-05 05:43:53 S 07 13 04.272 +38 05 39.01 V C57
2022-01-05 05:43:53 s 1 +58594.182 0 +378442.80 4460.0 C57
2022-01-05 05:53:53 S 07 13 02.546 +38 05 19.43 V C57
2022-01-05 05:53:53 s 1 +58248.294 0 +378607.71 5470.0 C57
2022-01-05 06:03:53 S 07 13 00.977 +38 04 59.84 V C57
2022-01-05 06:03:53 s 1 +57902.249 0 +378771.69 6070.0 C57
2022-01-05 06:13:53 S 07 12 59.239 +38 04 39.22 V C57
2022-01-05 06:13:53 s 1 +57556.041 0 +378934.70 6260.0 C57
2022-01-05 06:23:53 S 07 12 57.562 +38 04 18.55 V C57
2022-01-05 06:23:53 s 1 +57209.673 0 +379096.75 6040.0 C57
2022-01-05 06:33:53 S 07 12 55.975 +38 03 59.00 V C57
2022-01-05 06:33:53 s 1 +56863.149 0 +379257.87 5420.0 C57
2022-01-05 06:43:53 S 07 12 54.206 +38 03 38.12 V C57
2022-01-05 06:43:53 s 1 +56516.467 0 +379418.02 4400.0 C57
2022-01-05 06:53:53 S 07 12 52.524 +38 03 18.29 V C57
2022-01-05 06:53:53 s 1 +56169.627 0 +379577.21 2980.0 C57