2004 BY21

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4766070129 ± 7.12e-08
Semi-major axis (a)2.4177237186 AU ± 9.35e-09
Inclination (i)6.55734904° ± 1.00e-05
Long. of Asc. Node (Ω)40.25802343° ± 1.32e-04
Arg. of Perihelion (ω)155.41698481° ± 1.34e-04
Mean Anomaly (M)257.68766673° ± 1.63e-05
Mean Motion (n)0.2621816363°/day ± 1.52e-09
Perihelion dist (q)1.26541964 AU ± 1.72e-07
Aphelion dist (Q)3.57002780 AU ± 1.73e-07
Orbital Period3.75932616 yr ± 2.18e-08
Physical Parameters
H (abs. magnitude)18.94
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.407″
Uncertainty0
Orbit TypeAmor
MOID0.268184 AU
Observations Used59
Oppositions14
Arc Total2004-2023
First Observation Used2004-01-19
Last Observation Used2023-02-02
Observations (61)
Date Type RA Dec Mag Band Observatory
2019-01-15 05:34:32 C 06 18 22.87 +35 13 13.1 V G96
2019-01-15 05:42:01 C 06 18 22.40 +35 13 13.7 V G96
2019-01-15 05:49:29 C 06 18 21.91 +35 13 14.4 V G96
2019-01-15 05:56:58 C 06 18 21.39 +35 13 14.6 V G96
2023-01-16 07:59:21 C 13 10 24.73 +03 48 14.4 u 807
2023-01-16 08:07:00 C 13 10 25.70 +03 48 08.9 u 807
2023-01-16 08:14:22 C 13 10 26.61 +03 48 04.2 u 807
2023-02-02 12:09:43 C 14 04 10.844 -01 20 56.47 V G96
2023-02-02 12:17:46 C 14 04 11.888 -01 21 02.84 V G96
2023-02-02 12:25:49 C 14 04 12.943 -01 21 09.14 V G96
2023-02-02 12:33:51 C 14 04 13.980 -01 21 15.37 V G96