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
2022-01-10 05:27:29 C 06 53 48.75 +33 34 48.4 V G96
2022-01-10 05:35:04 C 06 53 47.57 +33 34 30.9 V G96
2022-01-10 05:42:40 C 06 53 46.38 +33 34 13.2 V G96
2022-01-10 05:50:14 C 06 53 45.20 +33 33 55.6 V G96
2022-01-10 06:54:31 C 06 53 36.102 +33 31 26.85 U F52
2022-01-10 07:08:10 C 06 53 33.987 +33 30 55.36 U F52
2022-01-10 07:21:54 C 06 53 31.851 +33 30 23.64 U F52
2022-01-10 07:35:32 C 06 53 29.736 +33 29 52.18 U F52
2022-01-10 10:19:50 C 06 53 04.05 +33 23 30.1 V T08
2022-01-10 10:23:52 C 06 53 03.42 +33 23 20.6 V T08
2022-01-10 11:05:42 C 06 52 56.88 +33 21 42.4 V T08
2022-01-10 11:46:44 C 06 52 50.48 +33 20 05.5 V T08
2022-01-10 18:06:56 B 06 51 53.62 +33 05 10.1 V O47
2022-01-10 18:22:31 B 06 51 51.18 +33 04 33.4 V O47
2022-01-10 18:38:05 B 06 51 48.77 +33 03 56.4 V O47
2022-01-10 21:05:01 C 06 51 27.80 +32 58 01.2 V G33
2022-01-10 21:06:42 C 06 51 27.54 +32 57 57.4 V G33
2022-01-10 21:08:23 C 06 51 27.27 +32 57 53.3 V G33
2022-01-10 21:10:04 C 06 51 27.03 +32 57 49.4 V G33
2022-01-10 21:11:45 C 06 51 26.77 +32 57 45.5 V G33
2022-01-10 21:13:26 C 06 51 26.50 +32 57 41.4 V G33
2022-01-11 16:09:21 C 06 48 38.45 +32 12 39.0 q C97
2022-01-11 16:12:12 C 06 48 38.02 +32 12 32.4 q C97
2022-01-11 16:13:36 C 06 48 37.80 +32 12 29.0 q C97
2022-01-11 16:15:02 C 06 48 37.59 +32 12 25.6 q C97
2022-01-12 08:01:15 C 06 46 18.54 +31 34 19.9 V T05
2022-01-12 08:03:53 C 06 46 18.14 +31 34 13.5 V T05
2022-01-12 08:20:53 C 06 46 15.57 +31 33 32.4 V T05
2022-01-12 08:26:15 C 06 46 14.77 +31 33 19.4 V T05
2022-01-12 09:43:53 C 06 46 02.19 +31 30 04.8 V G96
2022-01-12 09:49:57 C 06 46 01.29 +31 29 49.8 V G96
2022-01-12 09:56:03 C 06 46 00.38 +31 29 34.8 V G96
2022-01-12 10:02:08 C 06 45 59.48 +31 29 19.9 V G96
2022-01-12 21:19:45 C 06 44 22.62 +31 01 38.7 X K87
2022-01-12 21:20:47 C 06 44 22.49 +31 01 36.2 X K87
2022-01-12 21:21:52 C 06 44 22.34 +31 01 34.0 X K87
2022-01-13 21:01:22 C 06 41 00.23 +30 02 59.2 X K87
2022-01-13 21:02:26 C 06 41 00.08 +30 02 56.8 X K87
2022-01-13 21:03:29 C 06 40 59.94 +30 02 54.1 X K87
2022-01-18 19:52:43 C 06 25 19.34 +24 59 10.3 V 130
2022-01-18 19:54:54 C 06 25 19.06 +24 59 04.7 V 130
2022-01-18 19:57:06 C 06 25 18.78 +24 58 59.0 V 130
2022-01-18 19:58:45 C 06 25 18.58 +24 58 54.7 V 130
2022-01-19 19:25:13 C 06 22 29.18 +23 58 03.8 V L54
2022-01-19 19:42:26 C 06 22 27.08 +23 57 19.2 V L54
2022-01-19 19:59:03 C 06 22 25.04 +23 56 36.4 V L54
2022-01-19 22:30:41 C 06 22 06.55 +23 50 02.0 V L54
2022-01-19 23:11:02 C 06 22 01.66 +23 48 16.9 V L54
2022-01-19 23:50:48 C 06 21 56.86 +23 46 33.1 V L54
2022-01-20 00:17:42 C 06 21 53.62 +23 45 22.8 V L54