2019 SL4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5148425402 ± 1.01e-04
Semi-major axis (a)1.7217420607 AU ± 3.05e-04
Inclination (i)6.34784242° ± 9.89e-04
Long. of Asc. Node (Ω)169.03229824° ± 2.99e-04
Arg. of Perihelion (ω)117.71750177° ± 3.26e-04
Mean Anomaly (M)286.86175021° ± 2.69e-01
Mean Motion (n)0.4362748146°/day ± 1.16e-04
Perihelion dist (q)0.83531600 AU ± 2.28e-04
Aphelion dist (Q)2.60816812 AU ± 4.93e-04
Orbital Period2.25918676 yr ± 5.99e-04
Physical Parameters
H (abs. magnitude)24.08
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.163″
Uncertainty3
Orbit TypeApollo
MOID0.003493 AU
Observations Used26
Oppositions1
Arc Total2019-2019
First Observation Used2019-09-25
Last Observation Used2019-10-19
Observations (27)
Date Type RA Dec Mag Band Observatory
2019-09-25 11:13:11 C 01 19 29.094 -05 43 50.64 V F51
2019-09-25 11:49:50 C 01 19 24.602 -05 44 29.42 V F51
2019-09-25 12:08:07 C 01 19 22.360 -05 44 48.77 V F51
2019-09-26 11:42:00 C 01 17 00.154 -06 08 21.83 U F51
2019-09-26 12:15:06 C 01 16 56.410 -06 08 52.86 U F51
2019-09-26 12:31:42 C 01 16 54.545 -06 09 08.32 U F51
2019-09-27 00:02:49 C 01 15 50.22 -06 19 59.0 V L01
2019-09-27 00:05:04 C 01 15 49.99 -06 20 01.1 V L01
2019-09-27 00:25:37 C 01 15 47.86 -06 20 19.5 V L01
2019-09-27 00:27:53 C 01 15 47.65 -06 20 21.9 V L01
2019-09-27 04:48:45 C 01 15 25.42 -06 24 05.7 u H21
2019-09-27 04:57:31 C 01 15 24.50 -06 24 13.3 u H21
2019-09-27 05:05:43 C 01 15 23.67 -06 24 20.2 u H21
2019-09-28 09:18:56 C 01 12 56.465 -06 46 56.37 V T12
2019-09-29 01:35:18 C 01 11 35.854 -06 58 54.31 V J04
2019-09-29 01:40:03 C 01 11 35.411 -06 58 57.85 V J04
2019-09-29 01:44:49 C 01 11 34.949 -06 59 00.96 V J04
2019-10-01 09:48:22 C 01 07 29.30 -07 33 19.4 o 691
2019-10-01 10:17:40 C 01 07 27.05 -07 33 34.4 o 691
2019-10-01 10:46:57 C 01 07 24.85 -07 33 49.4 o 691
2019-10-03 06:47:52 C 01 04 42.47 -07 54 41.7 V G96
2019-10-03 07:05:47 C 01 04 41.19 -07 54 49.4 V G96
2019-10-03 07:13:12 C 01 04 40.67 -07 54 52.2 V G96
2019-10-03 07:20:38 C 01 04 40.17 -07 54 55.8 V G96
2019-10-06 10:59:35 C 01 00 41.011 -08 20 49.00 U F51
2019-10-06 11:30:59 C 01 00 39.204 -08 20 57.47 U F51
2019-10-19 08:21:29 C 00 51 14.119 -08 44 14.06 V G37