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 00:53:53 S 07 17 48.653 +39 01 43.72 V C57
2022-01-04 00:53:53 s 1 +115044.89 1 +335144.60 1610.0 C57
2022-01-04 01:03:53 S 07 17 47.153 +39 01 25.54 V C57
2022-01-04 01:03:53 s 1 +114743.99 6 +335482.00 7780.0 C57
2022-01-04 01:13:53 S 07 17 45.593 +39 01 06.38 V C57
2022-01-04 01:13:53 s 1 +114442.72 3 +335818.32 2590.0 C57
2022-01-04 01:23:53 S 07 17 43.802 +39 00 47.41 V C57
2022-01-04 01:23:53 s 1 +114141.07 5 +336153.60 6090.0 C57
2022-01-04 01:33:53 S 07 17 42.310 +39 00 28.12 V C57
2022-01-04 01:33:53 s 1 +113839.06 4 +336487.84 8300.0 C57
2022-01-04 01:43:53 S 07 17 40.536 +39 00 08.32 V C57
2022-01-04 01:43:53 s 1 +113536.67 9 +336821.03 9190.0 C57
2022-01-04 01:53:53 S 07 17 38.957 +38 59 50.64 V C57
2022-01-04 01:53:53 s 1 +113233.92 4 +337153.16 8780.0 C57
2022-01-04 02:03:53 S 07 17 37.366 +38 59 31.78 V C57
2022-01-04 02:03:53 s 1 +112930.81 1 +337484.26 7100.0 C57
2022-01-04 02:13:53 S 07 17 35.724 +38 59 12.12 V C57
2022-01-04 02:13:53 s 1 +112627.32 7 +337814.31 4120.0 C57
2022-01-04 02:23:53 S 07 17 34.102 +38 58 53.33 V C57
2022-01-04 02:23:53 s 1 +112323.48 0 +338143.30 9860.0 C57
2022-01-04 02:33:53 S 07 17 32.484 +38 58 34.86 V C57
2022-01-04 02:33:53 s 1 +112019.27 8 +338471.27 4350.0 C57
2022-01-04 02:43:53 S 07 17 30.775 +38 58 15.78 V C57
2022-01-04 02:43:53 s 1 +111714.71 0 +338798.19 7560.0 C57
2022-01-04 02:53:53 S 07 17 29.177 +38 57 57.60 V C57
2022-01-04 02:53:53 s 1 +111409.78 3 +339124.05 9510.0 C57
2022-01-04 03:03:53 S 07 17 27.581 +38 57 38.84 V C57
2022-01-04 03:03:53 s 1 +111104.50 6 +339448.90 220.0 C57
2022-01-04 03:13:53 S 07 17 25.999 +38 57 19.48 V C57
2022-01-04 03:13:53 s 1 +110798.86 8 +339772.68 9680.0 C57
2022-01-04 03:23:53 S 07 17 24.271 +38 56 59.93 V C57
2022-01-04 03:23:53 s 1 +110492.87 5 +340095.43 7890.0 C57
2022-01-04 03:33:53 S 07 17 22.630 +38 56 41.10 V C57
2022-01-04 03:33:53 s 1 +110186.53 6 +340417.15 4890.0 C57
2022-01-04 03:43:53 S 07 17 20.993 +38 56 21.88 V C57
2022-01-04 03:43:53 s 1 +109879.84 1 +340737.82 650.0 C57
2022-01-04 03:53:53 S 07 17 19.373 +38 56 02.98 V C57
2022-01-04 03:53:53 s 1 +109572.79 6 +341057.44 5180.0 C57
2022-01-04 04:03:53 S 07 17 17.736 +38 55 44.33 V C57
2022-01-04 04:03:53 s 1 +109265.40 9 +341376.05 8520.0 C57
2022-01-04 04:13:53 S 07 17 16.102 +38 55 25.68 V C57
2022-01-04 04:13:53 s 1 +108957.67 0 +341693.61 640.0 C57
2022-01-04 04:23:53 S 07 17 14.558 +38 55 05.56 V C57
2022-01-04 04:23:53 s 1 +108649.58 5 +342010.12 1550.0 C57
2022-01-04 04:33:53 S 07 17 12.818 +38 54 46.91 V C57
2022-01-04 04:33:53 s 1 +108341.16 3 +342325.62 1290.0 C57
2022-01-04 04:43:53 S 07 17 11.141 +38 54 26.42 V C57
2022-01-04 04:43:53 s 1 +108032.39 5 +342640.07 9820.0 C57
2022-01-04 04:53:53 S 07 17 09.581 +38 54 09.25 V C57
2022-01-04 04:53:53 s 1 +107723.28 4 +342953.48 7170.0 C57