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
2022-04-25 00:45:58 C 06 58 26.386 -20 18 43.27 V W68
2022-04-28 00:25:08 C 07 04 47.138 -20 54 43.49 V W68
2022-04-28 00:29:19 C 07 04 47.482 -20 54 44.82 V W68
2022-04-28 00:37:30 C 07 04 48.199 -20 54 49.61 V W68
2022-04-28 00:52:20 C 07 04 49.560 -20 54 57.10 V W68
2022-05-10 23:45:53 C 07 35 00.538 -23 30 51.70 V W68
2022-05-10 23:50:17 C 07 35 00.962 -23 30 54.65 V W68
2022-05-10 23:59:08 C 07 35 01.891 -23 30 58.90 V W68
2022-05-11 00:15:44 C 07 35 03.581 -23 31 07.50 V W68
2022-06-06 23:36:53 C 08 52 57.562 -28 54 59.90 V W68
2022-06-06 23:41:27 C 08 52 58.226 -28 55 02.21 V W68
2022-06-06 23:48:37 C 08 52 59.150 -28 55 05.95 V W68
2022-06-07 00:03:34 C 08 53 01.198 -28 55 12.50 V W68
2022-07-06 17:28:06 C 10 43 41.431 -33 48 52.45 V M22
2022-07-06 17:32:51 C 10 43 42.216 -33 48 54.36 V M22
2022-07-06 17:40:39 C 10 43 43.567 -33 48 56.48 V M22
2022-07-06 17:47:58 C 10 43 44.750 -33 48 58.68 V M22
2022-07-06 17:51:58 C 10 43 45.511 -33 48 59.62 V M22
2022-07-06 17:57:23 C 10 43 46.387 -33 49 01.24 V M22
2022-07-06 18:00:48 C 10 43 46.987 -33 49 01.92 V M22
2022-07-06 18:17:38 C 10 43 49.786 -33 49 06.89 V M22
2022-07-22 00:00:26 C 11 47 29.614 -35 08 01.57 V W68
2022-07-22 00:04:28 C 11 47 30.382 -35 08 02.29 V W68
2022-07-22 00:14:34 C 11 47 32.155 -35 08 04.27 V W68
2022-07-22 00:28:39 C 11 47 34.625 -35 08 04.45 V W68
2022-07-30 17:56:56 C 12 24 26.100 -35 24 00.47 V M22
2022-07-30 18:01:42 C 12 24 26.945 -35 24 00.47 V M22
2022-07-30 18:09:40 C 12 24 28.313 -35 23 59.96 V M22
2022-07-30 18:25:39 C 12 24 31.078 -35 23 59.57 V M22
2023-07-01 10:37:35 C 01 09 40.453 +43 03 58.32 V G96
2023-07-01 10:46:22 C 01 09 41.065 +43 04 06.35 V G96
2023-07-01 10:55:08 C 01 09 41.659 +43 04 14.41 V G96
2023-07-01 11:03:56 C 01 09 42.257 +43 04 22.22 V G96
2023-10-19 09:11:53 C 02 11 44.136 +77 03 12.85 V T05
2023-10-19 09:36:53 C 02 11 40.157 +77 03 19.22 V T05
2023-10-19 09:39:30 C 02 11 39.871 +77 03 20.20 V T05
2023-10-19 09:42:06 C 02 11 39.554 +77 03 19.84 V T05
2023-10-19 09:46:02 C 02 11 38.585 +77 03 19.94 V T05
2023-10-28 07:03:19 C 01 35 45.432 +77 14 00.07 X F51
2023-10-28 07:11:46 C 01 35 43.868 +77 13 59.29 X F51
2023-10-28 07:20:25 C 01 35 42.326 +77 13 58.46 X F51
2023-10-28 07:29:02 C 01 35 40.754 +77 13 57.59 X F51
2023-11-02 10:13:04 C 01 14 52.579 +76 48 18.94 V T05
2023-11-02 10:18:20 C 01 14 51.672 +76 48 17.39 V T05
2023-11-02 10:27:30 C 01 14 50.146 +76 48 14.87 V T05
2023-11-02 10:42:44 C 01 14 47.652 +76 48 09.68 V T05
2023-11-10 09:05:24 C 00 48 05.628 +75 22 31.66 V T05
2023-11-10 09:09:58 C 00 48 05.119 +75 22 29.24 V T05
2023-11-10 09:18:28 C 00 48 04.039 +75 22 23.92 V T05
2023-11-10 09:33:01 C 00 48 01.970 +75 22 15.13 V T05