373135 (2011 SD173)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4974722396 ± 2.45e-08
Semi-major axis (a)1.6525488596 AU ± 9.75e-09
Inclination (i)4.38544906° ± 6.34e-06
Long. of Asc. Node (Ω)203.02865563° ± 4.45e-05
Arg. of Perihelion (ω)59.65535233° ± 4.65e-05
Mean Anomaly (M)308.19435978° ± 2.24e-05
Mean Motion (n)0.4639602919°/day ± 4.11e-09
Perihelion dist (q)0.83045168 AU ± 4.07e-08
Aphelion dist (Q)2.47464604 AU ± 4.30e-08
Orbital Period2.12437638 yr ± 1.88e-08
Physical Parameters
H (abs. magnitude)19.52
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.327″
Uncertainty0
Orbit TypeApollo
MOID0.001881 AU
Observations Used193
Oppositions10
Arc Total1996-2015
First Observation Used1996-10-11
Last Observation Used2015-12-09
Observations (220)
Date Type RA Dec Mag Band Observatory
2015-02-19 06:42:00 C 07 41 47.157 +13 06 27.54 L F51
2015-09-30 14:00:09 S 18 57 53.237 -15 44 10.03 L C51
2015-09-30 14:00:20 S 18 57 53.299 -15 44 10.21 L C51
2015-09-30 17:09:12 S 18 58 46.656 -15 44 15.43 L C51
2015-10-01 02:35:48 S 19 01 25.982 -15 44 24.32 L C51
2015-10-01 10:28:09 S 19 03 37.86 -15 44 26.2 L C51
2015-10-01 12:02:35 S 19 04 04.09 -15 44 26.4 L C51
2015-10-01 13:37:01 S 19 04 30.31 -15 44 24.9 L C51
2015-10-01 15:11:27 S 19 04 56.47 -15 44 24.5 L C51
2015-10-01 16:45:53 S 19 05 22.670 -15 44 23.60 L C51
2015-10-01 18:20:19 S 19 05 48.73 -15 44 21.9 L C51
2015-10-01 19:54:45 S 19 06 14.801 -15 44 20.76 L C51
2015-10-01 23:03:37 S 19 07 06.830 -15 44 17.56 L C51
2015-10-02 02:12:29 S 19 07 58.699 -15 44 13.78 L C51
2015-10-02 08:30:25 S 19 09 42.050 -15 44 03.48 L C51
2015-10-02 14:48:09 S 19 11 24.826 -15 43 47.96 L C51
2015-10-02 17:57:01 S 19 12 15.989 -15 43 39.86 L C51
2015-12-09 04:57:41 C 23 11 14.308 -05 13 02.58 L F51
2015-12-09 05:15:19 C 23 11 15.838 -05 12 54.61 L F51
2015-12-09 05:32:58 C 23 11 17.415 -05 12 46.11 L F51