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
2022-01-03 16:33:53 S 07 19 10.162 +39 17 17.77 V C57
2022-01-03 16:33:53 s 1 +129577.25 9 +316919.25 5000.0 C57
2022-01-03 16:43:53 S 07 19 08.602 +39 16 59.05 V C57
2022-01-03 16:43:53 s 1 +129297.15 9 +317310.16 6220.0 C57
2022-01-03 16:53:53 S 07 19 06.874 +39 16 39.83 V C57
2022-01-03 16:53:53 s 1 +129016.59 8 +317699.96 5750.0 C57
2022-01-03 17:03:53 S 07 19 05.251 +39 16 21.43 V C57
2022-01-03 17:03:53 s 1 +128735.58 8 +318088.70 3640.0 C57
2022-01-03 17:13:53 S 07 19 03.689 +39 16 03.00 V C57
2022-01-03 17:13:53 s 1 +128454.11 5 +318476.33 9840.0 C57
2022-01-03 17:23:53 S 07 19 01.973 +39 15 44.64 V C57
2022-01-03 17:23:53 s 1 +128172.18 8 +318862.87 4370.0 C57
2022-01-03 17:33:53 S 07 19 00.514 +39 15 26.60 V C57
2022-01-03 17:33:53 s 1 +127889.81 6 +319248.35 7270.0 C57
2022-01-03 17:43:53 S 07 18 58.807 +39 15 07.31 V C57
2022-01-03 17:43:53 s 1 +127606.98 9 +319632.72 8510.0 C57
2022-01-03 17:53:53 S 07 18 57.137 +39 14 50.17 V C57
2022-01-03 17:53:53 s 1 +127323.71 1 +320015.99 8100.0 C57
2022-01-03 18:03:53 S 07 18 55.570 +39 14 29.69 V C57
2022-01-03 18:03:53 s 1 +127039.99 6 +320398.21 6100.0 C57
2022-01-03 18:13:53 S 07 18 54.024 +39 14 12.34 V C57
2022-01-03 18:13:53 s 1 +126755.82 9 +320779.32 2450.0 C57
2022-01-03 18:23:53 S 07 18 52.378 +39 13 54.37 V C57
2022-01-03 18:23:53 s 1 +126471.21 9 +321159.35 7170.0 C57
2022-01-03 18:33:53 S 07 18 50.707 +39 13 34.57 V C57
2022-01-03 18:33:53 s 1 +126186.17 5 +321538.31 330.0 C57
2022-01-03 18:43:53 S 07 18 49.003 +39 13 15.85 V C57
2022-01-03 18:43:53 s 1 +125900.68 6 +321916.18 1860.0 C57
2022-01-03 18:53:53 S 07 18 47.417 +39 12 57.06 V C57
2022-01-03 18:53:53 s 1 +125614.75 9 +322292.96 1790.0 C57
2022-01-03 19:03:53 S 07 18 45.886 +39 12 39.06 V C57
2022-01-03 19:03:53 s 1 +125328.40 3 +322668.68 160.0 C57
2022-01-03 19:13:53 S 07 18 44.270 +39 12 20.66 V C57
2022-01-03 19:13:53 s 1 +125041.60 8 +323043.30 6940.0 C57
2022-01-03 19:23:53 S 07 18 42.614 +39 12 02.52 V C57
2022-01-03 19:23:53 s 1 +124754.38 0 +323416.85 2150.0 C57
2022-01-03 19:33:53 S 07 18 40.865 +39 11 42.79 V C57
2022-01-03 19:33:53 s 1 +124466.72 9 +323789.33 5820.0 C57
2022-01-03 19:43:53 S 07 18 39.170 +39 11 24.47 V C57
2022-01-03 19:43:53 s 1 +124178.64 3 +324160.73 7910.0 C57
2022-01-03 19:53:53 S 07 18 37.570 +39 11 04.45 V C57
2022-01-03 19:53:53 s 1 +123890.13 0 +324531.04 8450.0 C57
2022-01-03 20:03:53 S 07 18 36.034 +39 10 46.60 V C57
2022-01-03 20:03:53 s 1 +123601.19 9 +324900.30 7480.0 C57
2022-01-03 20:13:53 S 07 18 34.481 +39 10 28.85 V C57
2022-01-03 20:13:53 s 1 +123311.83 9 +325268.47 4960.0 C57
2022-01-03 20:23:53 S 07 18 32.822 +39 10 09.41 V C57
2022-01-03 20:23:53 s 1 +123022.05 6 +325635.56 910.0 C57
2022-01-03 20:33:53 S 07 18 31.142 +39 09 51.80 V C57
2022-01-03 20:33:53 s 1 +122731.86 1 +326001.60 5360.0 C57