85839 (1998 YO4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2481006912 ± 1.24e-08
Semi-major axis (a)1.6534926704 AU ± 9.96e-10
Inclination (i)9.31939239° ± 8.81e-07
Long. of Asc. Node (Ω)28.50072273° ± 2.80e-06
Arg. of Perihelion (ω)199.69071851° ± 2.99e-06
Mean Anomaly (M)97.04138343° ± 2.26e-06
Mean Motion (n)0.4635631070°/day ± 4.19e-10
Perihelion dist (q)1.24326000 AU ± 2.05e-08
Aphelion dist (Q)2.06372534 AU ± 2.05e-08
Orbital Period2.12619656 yr ± 1.92e-09
Physical Parameters
H (abs. magnitude)16.58
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.072″
Uncertainty0
Orbit TypeAmor
MOID0.239954 AU
Observations Used2510
Gaia Obs Used50
Oppositions12
Arc Total1993-2025
First Observation Used1993-04-25
Last Observation Used2025-11-08
Observations (3041)
Date Type RA Dec Mag Band Observatory
2021-09-09 18:43:59 s 1 -25619.491 0 +376293.79 600.0 C57
2021-09-09 19:13:59 S 01 02 34.318 -03 31 47.93 V C57
2021-09-09 19:13:59 s 1 -26740.006 0 +376174.85 9210.0 C57
2021-09-09 19:23:59 S 01 02 33.367 -03 31 57.14 V C57
2021-09-09 19:23:59 s 1 -27113.359 0 +376133.19 8190.0 C57
2021-09-09 20:53:59 S 01 02 28.884 -03 32 10.54 V C57
2021-09-09 20:53:59 s 1 -30469.902 0 +375712.85 5850.0 C57
2021-09-09 21:43:59 S 01 02 25.968 -03 32 19.90 V C57
2021-09-09 21:43:59 s 1 -32331.652 0 +375444.03 2630.0 C57
2021-09-09 22:13:59 S 01 02 24.122 -03 32 25.26 V C57
2021-09-09 22:13:59 s 1 -33447.607 0 +375270.64 4770.0 C57
2021-09-10 02:03:59 S 01 02 11.645 -03 32 59.75 V C57
2021-09-10 02:03:59 s 1 -41972.876 0 +373639.85 9970.0 C57
2021-09-10 02:33:59 S 01 02 10.447 -03 33 04.82 V C57
2021-09-10 02:33:59 s 1 -43080.525 0 +373387.81 2740.0 C57
2021-09-10 02:43:59 S 01 02 09.886 -03 33 02.99 V C57
2021-09-10 02:43:59 s 1 -43449.500 0 +373301.78 6150.0 C57
2021-09-10 05:43:59 S 01 02 00.473 -03 33 31.43 V C57
2021-09-10 05:43:59 s 1 -50069.173 0 +371580.64 1170.0 C57
2021-09-10 06:13:59 S 01 01 58.510 -03 33 39.74 V C57
2021-09-10 06:13:59 s 1 -51168.184 0 +371261.97 3830.0 C57
2021-09-10 09:03:46 C 01 02 27.52 -03 33 36.9 U I41
2021-09-10 10:10:10 C 01 02 23.77 -03 33 46.8 U I41
2021-09-10 12:33:59 S 01 01 38.203 -03 34 42.64 V C57
2021-09-10 12:33:59 s 1 -64967.464 0 +366437.40 5040.0 C57
2021-09-10 15:33:59 S 01 01 27.989 -03 35 14.35 V C57
2021-09-10 15:33:59 s 1 -71414.762 0 +363640.72 6610.0 C57
2021-09-10 15:53:59 S 01 01 27.017 -03 35 19.32 V C57
2021-09-10 15:53:59 s 1 -72127.167 0 +363309.62 5480.0 C57
2021-09-10 17:03:59 S 01 01 23.496 -03 35 24.00 V C57
2021-09-10 17:03:59 s 1 -74614.029 0 +362118.63 9220.0 C57
2021-09-10 18:23:59 S 01 01 18.984 -03 35 35.34 V C57
2021-09-10 18:23:59 s 1 -77443.285 0 +360696.23 5410.0 C57
2021-09-10 18:43:59 S 01 01 17.880 -03 35 44.30 V C57
2021-09-10 18:43:59 s 1 -78148.388 0 +360330.40 9440.0 C57
2021-09-10 20:03:59 S 01 01 13.709 -03 35 52.30 V C57
2021-09-10 20:03:59 s 1 -80959.684 0 +358826.13 4600.0 C57
2021-09-11 06:51:00 C 01 01 16.13 -03 36 52.4 V G96
2021-09-11 06:57:52 C 01 01 15.74 -03 36 53.3 V G96
2021-09-11 07:04:43 C 01 01 15.34 -03 36 54.4 V G96
2021-09-11 07:11:32 C 01 01 14.94 -03 36 55.4 V G96
2021-09-11 07:24:57 C 01 01 14.30 -03 36 57.8 V 703
2021-09-11 07:32:34 C 01 01 13.77 -03 36 58.7 V 703
2021-09-11 07:40:10 C 01 01 13.35 -03 36 59.0 V 703
2021-09-11 07:47:47 C 01 01 12.80 -03 37 01.5 V 703
2021-09-11 08:33:59 S 01 00 33.583 -03 37 59.48 V C57
2021-09-11 08:33:59 s 1 -106498.95 8 +341508.89 7520.0 C57
2021-09-11 08:43:59 S 01 00 32.546 -03 38 01.43 V C57
2021-09-11 08:43:59 s 1 -106828.15 6 +341238.36 5610.0 C57
2021-09-11 09:13:59 S 01 00 31.058 -03 38 09.46 V C57