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
2022-01-26 07:56:33 C 06 06 09.37 +17 17 57.1 V T08
2022-01-27 07:36:56 C 06 04 04.67 +16 19 34.4 V T05
2022-01-27 07:42:22 C 06 04 04.17 +16 19 21.1 V T05
2022-01-27 07:46:21 C 06 04 03.81 +16 19 11.4 V T05
2022-01-27 08:03:02 C 06 04 02.30 +16 18 30.5 V T05
2022-01-27 08:21:35 C 06 04 00.61 +16 17 45.6 V T08
2022-01-27 08:34:15 C 06 03 59.46 +16 17 14.5 V T08
2022-01-27 09:26:19 C 06 03 54.77 +16 15 06.8 V T08
2022-01-28 07:52:59 C 06 02 03.01 +15 20 36.6 V T05
2022-01-28 08:07:38 C 06 02 01.75 +15 20 01.3 V T05
2022-01-28 08:12:21 C 06 02 01.34 +15 19 49.9 V T05
2022-01-28 08:23:05 C 06 02 00.42 +15 19 24.0 V T05
2022-01-28 21:30:24 C 06 00 57.37 +14 47 49.0 V 160
2022-01-28 21:31:15 C 06 00 57.31 +14 47 46.9 V 160
2022-01-28 21:32:07 C 06 00 57.27 +14 47 44.9 V 160
2022-01-29 08:10:16 C 06 00 07.66 +14 22 34.0 V T08
2022-01-29 08:17:36 C 06 00 07.05 +14 22 16.5 V T08
2022-01-29 08:43:02 C 06 00 04.98 +14 21 16.2 V T08
2022-02-01 16:02:59 C 05 54 33.61 +11 19 16.6 q C97
2022-02-01 16:03:47 C 05 54 33.60 +11 19 16.6 q C97
2022-02-01 16:09:18 C 05 54 33.20 +11 19 00.4 q C97
2022-02-01 16:10:05 C 05 54 33.17 +11 18 58.9 q C97
2022-02-01 16:10:53 C 05 54 33.11 +11 18 57.2 q C97
2022-02-01 16:11:40 C 05 54 33.05 +11 18 55.3 q C97
2022-02-01 16:12:28 C 05 54 33.01 +11 18 53.6 q C97
2022-02-01 16:13:16 C 05 54 32.95 +11 18 51.8 q C97
2022-02-01 16:14:03 C 05 54 32.90 +11 18 50.1 q C97
2022-02-01 19:07:09 C 05 54 22.07 +11 12 21.7 V G17
2022-02-01 19:10:47 C 05 54 21.85 +11 12 13.5 V G17
2022-02-01 19:14:26 C 05 54 21.60 +11 12 05.7 V G17
2022-02-01 19:39:12 C 05 54 19.97 +11 11 10.6 V 160
2022-02-01 19:41:56 C 05 54 19.78 +11 11 04.7 V 160
2022-02-01 19:44:33 C 05 54 19.61 +11 10 58.9 V 160
2022-02-01 21:28:09 C 05 54 12.79 +11 07 09.9 q L47
2022-02-01 21:31:37 C 05 54 12.59 +11 07 01.9 q L47
2022-02-02 19:51:32 C 05 52 52.59 +10 18 18.6 q L47
2022-02-02 19:55:02 C 05 52 52.34 +10 18 10.2 q L47
2022-02-04 07:32:02 C 05 50 54.61 +09 02 41.7 V T08
2022-02-04 07:40:46 C 05 50 54.12 +09 02 23.5 V T08
2022-02-04 07:47:27 C 05 50 53.74 +09 02 09.6 V T08
2022-02-05 19:55:26 C 05 49 07.28 +07 48 07.6 X G02
2022-02-05 20:01:31 C 05 49 06.99 +07 47 55.4 X G02
2022-02-05 20:07:35 C 05 49 06.70 +07 47 43.3 X G02
2022-02-06 04:53:33 C 05 48 42.66 +07 30 16.6 V G96
2022-02-06 05:01:56 C 05 48 42.25 +07 29 59.9 V G96
2022-02-06 05:10:17 C 05 48 41.85 +07 29 43.4 V G96
2022-02-06 05:18:36 C 05 48 41.44 +07 29 26.7 V G96
2022-02-06 07:34:31 C 05 48 35.55 +07 25 00.3 V T05
2022-02-06 07:41:11 C 05 48 35.22 +07 24 47.1 V T05
2022-02-06 07:49:07 C 05 48 34.83 +07 24 31.3 V T05