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
2024-02-03 20:01:39 B 02 28 35.65 +38 49 43.7 X K19
2024-02-03 20:07:12 B 02 28 36.23 +38 49 36.9 X K19
2024-02-03 20:12:45 B 02 28 36.78 +38 49 31.9 X K19
2024-02-04 06:54:45 C 02 29 43.440 +38 39 30.92 V T08
2024-02-04 07:00:04 C 02 29 43.987 +38 39 26.46 V T08
2024-02-04 07:11:08 C 02 29 45.098 +38 39 15.84 V T08
2024-02-04 07:42:47 C 02 29 48.350 +38 38 45.85 V T08
2024-02-10 06:33:06 C 02 44 43.812 +36 28 46.96 V T05
2024-02-10 06:37:42 C 02 44 44.244 +36 28 42.13 V T05
2024-02-10 06:38:21 C 02 44 44.335 +36 28 42.06 V T05
2024-02-10 07:07:25 C 02 44 47.347 +36 28 15.92 V T05
2024-02-10 07:12:37 C 02 44 47.897 +36 28 09.77 V T05
2024-02-10 07:15:15 C 02 44 48.206 +36 28 08.62 V T05
2024-02-10 07:20:29 C 02 44 48.636 +36 28 04.26 V T05
2024-02-13 05:44:16 C 02 52 12.564 +35 26 49.63 V T05
2024-02-13 05:45:34 C 02 52 12.725 +35 26 47.87 V T05
2024-02-13 05:49:29 C 02 52 12.982 +35 26 43.98 V T05
2024-02-13 05:50:47 C 02 52 13.202 +35 26 44.20 V T05
2024-02-13 05:59:18 C 02 52 14.143 +35 26 36.20 V T05
2024-02-13 06:12:57 C 02 52 15.353 +35 26 22.42 V T05
2024-02-13 06:14:15 C 02 52 15.689 +35 26 22.67 V T05
2024-02-14 05:44:43 C 02 54 44.114 +35 06 20.09 V T05
2024-02-14 06:02:40 C 02 54 46.006 +35 06 04.86 V T05
2024-02-14 06:07:14 C 02 54 46.459 +35 06 00.61 V T05
2024-02-14 06:16:22 C 02 54 47.350 +35 05 53.23 V T05
2024-02-28 06:30:50 C 03 30 17.630 +30 37 58.01 V T08
2024-02-28 06:35:37 C 03 30 18.238 +30 37 55.70 V T08
2024-02-28 06:43:42 C 03 30 18.931 +30 37 49.01 V T08
2024-02-28 06:58:35 C 03 30 20.558 +30 37 37.56 V T08
2024-03-12 03:07:51 C 04 02 56.008 +26 56 35.20 V 703
2024-03-12 03:11:07 C 04 02 56.382 +26 56 33.94 V 703
2024-03-12 03:14:22 C 04 02 56.713 +26 56 32.50 V 703
2024-03-12 03:17:38 C 04 02 57.091 +26 56 30.12 V 703
2024-03-13 04:02:36 C 04 05 34.084 +26 39 29.74 V 703
2024-03-13 04:05:50 C 04 05 34.444 +26 39 26.71 V 703
2024-03-13 04:09:03 C 04 05 34.775 +26 39 24.23 V 703
2024-03-13 04:12:16 C 04 05 35.171 +26 39 23.11 V 703
2024-03-14 03:09:03 C 04 08 00.791 +26 23 41.60 V V00
2024-03-14 03:17:09 C 04 08 01.633 +26 23 36.06 V V00
2024-03-14 03:25:14 C 04 08 02.486 +26 23 30.44 V V00
2024-03-14 03:33:18 C 04 08 03.329 +26 23 24.94 V V00
2024-03-21 03:00:48 C 04 25 45.008 +24 30 52.02 V G96
2024-03-21 03:06:51 C 04 25 45.628 +24 30 47.81 V G96
2024-03-21 03:12:55 C 04 25 46.268 +24 30 43.74 V G96
2024-03-21 03:19:01 C 04 25 46.916 +24 30 39.56 V G96
2024-03-30 05:51:26 C 04 48 49.273 +22 07 15.69 X F52
2024-03-30 05:58:56 C 04 48 50.064 +22 07 10.83 X F52
2024-03-30 06:06:26 C 04 48 50.840 +22 07 05.89 X F52
2024-03-30 06:13:55 C 04 48 51.626 +22 07 00.97 X F52
2024-05-01 03:10:11 C 06 09 21.121 +13 42 16.49 V G96