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
2022-01-02 01:43:53 S 07 25 20.587 +40 25 49.33 V C57
2022-01-02 01:43:53 s 1 +177011.20 2 +193783.64 7820.0 C57
2022-01-02 01:53:53 S 07 25 18.960 +40 25 32.99 V C57
2022-01-02 01:53:53 s 1 +176913.68 1 +194459.68 150.0 C57
2022-01-02 02:03:53 S 07 25 17.498 +40 25 17.08 V C57
2022-01-02 02:03:53 s 1 +176814.89 4 +195134.34 7380.0 C57
2022-01-02 02:13:53 S 07 25 15.847 +40 24 59.65 V C57
2022-01-02 02:13:53 s 1 +176714.84 8 +195807.62 9550.0 C57
2022-01-02 02:23:53 S 07 25 14.374 +40 24 42.05 V C57
2022-01-02 02:23:53 s 1 +176613.54 9 +196479.53 6690.0 C57
2022-01-02 16:37:35 C 07 22 05.59 +39 53 20.3 V D29
2022-01-02 16:38:51 C 07 22 05.37 +39 53 17.9 V D29
2022-01-02 16:59:13 C 07 22 02.05 +39 52 40.6 V D29
2022-01-02 17:00:29 C 07 22 01.83 +39 52 38.2 V D29
2022-01-02 17:20:51 C 07 21 58.52 +39 52 00.9 V D29
2022-01-02 17:22:08 C 07 21 58.30 +39 51 58.4 V D29
2022-01-02 23:53:53 S 07 21 51.307 +39 47 31.67 V C57
2022-01-02 23:53:53 s 1 +154909.92 2 +272149.09 7720.0 C57
2022-01-03 00:13:53 S 07 21 48.098 +39 46 55.81 V C57
2022-01-03 00:13:53 s 1 +154462.78 3 +273158.12 6650.0 C57
2022-01-03 00:23:53 S 07 21 46.404 +39 46 37.63 V C57
2022-01-03 00:23:53 s 1 +154238.17 7 +273660.85 7120.0 C57
2022-01-03 00:33:53 S 07 21 44.765 +39 46 19.63 V C57
2022-01-03 00:33:53 s 1 +154012.88 3 +274162.38 4940.0 C57
2022-01-03 00:43:53 S 07 21 43.190 +39 46 01.52 V C57
2022-01-03 00:43:53 s 1 +153786.90 4 +274662.72 140.0 C57
2022-01-03 00:53:53 S 07 21 41.671 +39 45 44.06 V C57
2022-01-03 00:53:53 s 1 +153560.24 5 +275161.86 2710.0 C57
2022-01-03 01:03:53 S 07 21 39.936 +39 45 24.98 V C57
2022-01-03 01:03:53 s 1 +153332.90 6 +275659.82 2670.0 C57
2022-01-03 01:13:53 S 07 21 38.405 +39 45 07.52 V C57
2022-01-03 01:13:53 s 1 +153104.89 1 +276156.58 40.0 C57
2022-01-03 01:23:53 S 07 21 36.792 +39 44 51.22 V C57
2022-01-03 01:23:53 s 1 +152876.20 4 +276652.16 4820.0 C57
2022-01-03 01:33:53 S 07 21 35.232 +39 44 33.07 V C57
2022-01-03 01:33:53 s 1 +152646.84 6 +277146.55 7030.0 C57
2022-01-03 01:43:53 S 07 21 33.617 +39 44 14.64 V C57
2022-01-03 01:43:53 s 1 +152416.82 1 +277639.75 6680.0 C57
2022-01-03 01:53:53 S 07 21 32.006 +39 43 57.54 V C57
2022-01-03 01:53:53 s 1 +152186.13 1 +278131.77 3770.0 C57
2022-01-03 02:03:53 S 07 21 30.307 +39 43 39.25 V C57
2022-01-03 02:03:53 s 1 +151954.77 9 +278622.61 8330.0 C57
2022-01-03 02:13:53 S 07 21 28.788 +39 43 22.04 V C57
2022-01-03 02:13:53 s 1 +151722.76 8 +279112.26 370.0 C57
2022-01-03 02:23:53 S 07 21 27.310 +39 43 02.71 V C57
2022-01-03 02:23:53 s 1 +151490.10 1 +279600.73 9890.0 C57
2022-01-03 02:33:53 S 07 21 25.632 +39 42 45.47 V C57
2022-01-03 02:33:53 s 1 +151256.78 0 +280088.02 6900.0 C57
2022-01-03 02:43:53 S 07 21 23.993 +39 42 27.50 V C57
2022-01-03 02:43:53 s 1 +151022.80 8 +280574.13 1420.0 C57