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
2024-05-01 03:19:22 C 06 09 22.079 +13 42 10.04 V G96
2024-05-01 03:25:27 C 06 09 22.705 +13 42 05.98 V G96
2024-05-01 03:31:31 C 06 09 23.375 +13 42 01.84 V G96
2025-08-19 21:10:23 B 23 35 33.161 +54 11 58.78 X R63
2025-08-19 22:37:31 B 23 35 27.626 +54 13 06.10 X R63
2025-09-02 11:14:22 C 23 10 02.611 +57 31 41.16 V T05
2025-09-02 11:18:58 C 23 10 02.184 +57 31 43.50 V T05
2025-09-02 12:09:44 C 23 09 57.254 +57 32 06.54 V T05
2025-09-02 12:18:22 C 23 09 56.496 +57 32 09.10 V T05
2025-09-17 09:10:39 C 22 34 11.258 +58 55 30.90 V T08
2025-09-17 09:14:39 C 22 34 11.076 +58 55 31.48 V T08
2025-09-17 10:12:52 C 22 34 04.759 +58 55 32.12 V T08
2025-09-17 10:22:12 C 22 34 03.804 +58 55 32.59 V T08
2025-09-17 11:18:35 C 22 33 57.830 +58 55 32.02 V T08
2025-09-17 11:25:57 C 22 33 57.067 +58 55 31.66 V T08
2025-09-23 08:48:18 C 22 19 56.834 +58 44 53.09 V T08
2025-09-23 09:05:31 C 22 19 55.162 +58 44 50.35 V T08
2025-09-23 09:09:30 C 22 19 54.823 +58 44 49.88 V T08
2025-09-23 09:20:07 C 22 19 53.695 +58 44 48.41 V T08
2025-09-30 08:30:32 C 22 05 07.834 +58 02 52.91 V T08
2025-09-30 08:32:30 C 22 05 07.682 +58 02 52.15 V T08
2025-09-30 08:40:26 C 22 05 06.979 +58 02 49.45 V T08
2025-09-30 08:58:53 C 22 05 05.455 +58 02 44.12 V T08
2025-09-30 09:00:12 C 22 05 05.496 +58 02 43.87 V T08
2025-10-23 07:14:31 C 21 39 00.730 +53 11 39.05 V T08
2025-10-23 07:21:46 C 21 39 00.859 +53 11 35.34 V T08
2025-10-23 07:40:57 C 21 39 00.523 +53 11 21.59 V T08
2025-10-23 07:48:12 C 21 39 00.425 +53 11 17.27 V T08
2025-10-23 07:52:09 C 21 39 00.427 +53 11 14.06 V T08
2025-10-23 07:59:23 C 21 39 00.250 +53 11 09.06 V T08
2025-10-23 08:17:52 C 21 38 59.957 +53 10 56.93 V T08
2025-12-18 01:22:58 C 22 38 20.108 +40 24 21.56 V G96
2025-12-18 01:31:15 C 22 38 20.782 +40 24 18.29 V G96
2025-12-18 01:39:32 C 22 38 21.458 +40 24 15.08 V G96
2025-12-18 01:47:50 C 22 38 22.139 +40 24 11.81 V G96