IAA RAS IAA Minor Planet Database

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
2022-01-06 00:13:53 S 07 10 00.137 +37 27 53.93 – V C57
2022-01-06 00:13:53 s 1 +19428.517 0 +390990.87 5210.0 – C57
2022-01-06 00:33:53 S 07 09 56.688 +37 27 11.34 – V C57
2022-01-06 00:33:53 s 1 +18712.417 0 +391111.49 5110.0 – C57
2022-01-06 00:43:53 S 07 09 55.128 +37 26 50.64 – V C57
2022-01-06 00:43:53 s 1 +18354.279 0 +391170.41 5010.0 – C57
2022-01-06 01:03:53 S 07 09 51.677 +37 26 09.53 – V C57
2022-01-06 01:03:53 s 1 +17637.834 0 +391285.48 4680.0 – C57
2022-01-06 01:13:53 S 07 09 50.086 +37 25 48.07 – V C57
2022-01-06 01:13:53 s 1 +17279.528 0 +391341.62 4450.0 – C57
2022-01-06 01:23:53 S 07 09 48.444 +37 25 27.95 – V C57
2022-01-06 01:23:53 s 1 +16921.166 0 +391396.84 4170.0 – C57
2022-01-06 01:33:53 S 07 09 46.733 +37 25 07.25 – V C57
2022-01-06 01:33:53 s 1 +16562.753 0 +391451.15 3830.0 – C57
2022-01-06 01:43:53 S 07 09 45.120 +37 24 45.86 – V C57
2022-01-06 01:43:53 s 1 +16204.285 0 +391504.52 3430.0 – C57
2022-01-06 01:53:53 S 07 09 43.589 +37 24 25.38 – V C57
2022-01-06 01:53:53 s 1 +15845.766 0 +391556.96 2970.0 – C57
2022-01-06 02:03:53 S 07 09 41.774 +37 24 05.15 – V C57
2022-01-06 02:03:53 s 1 +15487.196 0 +391608.50 2440.0 – C57
2022-01-06 02:13:53 S 07 09 40.140 +37 23 44.34 – V C57
2022-01-06 02:13:53 s 1 +15128.576 0 +391659.09 1850.0 – C57
2022-01-06 02:23:53 S 07 09 38.465 +37 23 22.70 – V C57
2022-01-06 02:23:53 s 1 +14769.906 0 +391708.77 1170.0 – C57
2022-01-06 02:33:53 S 07 09 36.821 +37 23 02.51 – V C57
2022-01-06 02:33:53 s 1 +14411.188 0 +391757.53 430.0 – C57
2022-01-06 02:43:53 S 07 09 35.150 +37 22 41.81 – V C57
2022-01-06 02:43:53 s 1 +14052.423 0 +391805.36 9590.0 – C57
2022-01-06 02:53:53 S 07 09 33.480 +37 22 20.21 – V C57
2022-01-06 02:53:53 s 1 +13693.610 0 +391852.26 8680.0 – C57
2022-01-06 03:03:53 S 07 09 31.757 +37 21 59.18 – V C57
2022-01-06 03:03:53 s 1 +13334.752 0 +391898.26 7670.0 – C57
2022-01-06 03:13:53 S 07 09 30.139 +37 21 38.12 – V C57
2022-01-06 03:13:53 s 1 +12975.849 0 +391943.31 6570.0 – C57
2022-01-06 03:23:53 S 07 09 28.546 +37 21 17.64 – V C57
2022-01-06 03:23:53 s 1 +12616.901 0 +391987.45 5370.0 – C57
2022-01-06 03:33:53 S 07 09 26.863 +37 20 56.62 – V C57
2022-01-06 03:33:53 s 1 +12257.911 0 +392030.67 4080.0 – C57
2022-01-06 03:43:53 S 07 09 25.202 +37 20 35.41 – V C57
2022-01-06 03:43:53 s 1 +11898.878 0 +392072.97 2670.0 – C57
2022-01-06 03:53:53 S 07 09 23.654 +37 20 15.43 – V C57
2022-01-06 03:53:53 s 1 +11539.803 0 +392114.33 1160.0 – C57
2022-01-06 04:03:53 S 07 09 21.864 +37 19 53.51 – V C57
2022-01-06 04:03:53 s 1 +11180.688 0 +392154.79 9540.0 – C57
2022-01-06 04:13:53 S 07 09 20.230 +37 19 33.28 – V C57
2022-01-06 04:13:53 s 1 +10821.533 0 +392194.32 7800.0 – C57
2022-01-06 04:23:53 S 07 09 18.526 +37 19 12.47 – V C57
2022-01-06 04:23:53 s 1 +10462.338 0 +392232.91 5940.0 – C57
2022-01-06 04:33:53 S 07 09 16.841 +37 18 51.34 – V C57
2022-01-06 04:33:53 s 1 +10103.106 0 +392270.61 3960.0 – C57