2017 MD9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7027554341 ± 1.40e-04
Semi-major axis (a)2.7375133513 AU ± 1.28e-03
Inclination (i)24.03502230° ± 1.88e-03
Long. of Asc. Node (Ω)343.03055998° ± 3.44e-03
Arg. of Perihelion (ω)18.31312271° ± 4.35e-03
Mean Anomaly (M)297.09458941° ± 4.61e-01
Mean Motion (n)0.2176095281°/day ± 1.53e-04
Perihelion dist (q)0.81371097 AU ± 5.41e-04
Aphelion dist (Q)4.66131573 AU ± 2.22e-03
Orbital Period4.52933422 yr ± 3.18e-03
Physical Parameters
H (abs. magnitude)19.95
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.154″
Uncertainty3
Orbit TypeApollo
MOID0.169522 AU
Observations Used18
Oppositions1
Arc Total2017-2017
First Observation Used2017-06-30
Last Observation Used2017-07-21
Observations (29)
Date Type RA Dec Mag Band Observatory
2017-06-27 14:50:04 S 01 55 44.58 -42 44 03.5 C51
2017-06-27 17:58:45 S 01 56 30.07 -42 35 34.5 C51
2017-06-27 19:33:00 S 01 56 52.78 -42 31 19.5 C51
2017-06-27 21:07:15 S 01 57 15.49 -42 27 03.5 C51
2017-06-27 22:41:30 S 01 57 38.19 -42 22 46.7 C51
2017-06-28 00:15:45 S 01 58 00.87 -42 18 30.0 C51
2017-06-28 01:50:00 S 01 58 23.49 -42 14 11.5 C51
2017-06-28 04:58:30 S 01 59 08.78 -42 05 33.0 C51
2017-06-28 08:07:11 S 01 59 54.000 -41 56 51.07 L C51
2017-06-28 11:15:41 S 02 00 39.178 -41 48 06.48 L C51
2017-06-28 14:24:11 S 02 01 24.254 -41 39 19.19 L C51
2017-06-30 09:52:23 C 02 11 42.02 -39 32 35.7 U I11
2017-06-30 09:53:28 C 02 11 42.28 -39 32 32.3 U I11
2017-06-30 09:54:35 C 02 11 42.53 -39 32 29.1 U I11
2017-06-30 09:55:41 C 02 11 42.78 -39 32 25.7 U I11
2017-07-01 03:03:56 C 02 15 42.88 -38 39 47.2 U K93
2017-07-01 03:11:31 C 02 15 44.62 -38 39 23.8 U K93
2017-07-01 03:19:08 C 02 15 46.36 -38 39 00.3 U K93
2017-07-01 03:25:29 C 02 15 47.81 -38 38 40.9 U K93
2017-07-13 02:42:11 C 03 18 31.54 -20 18 38.1 U K93
2017-07-13 02:58:14 C 03 18 34.81 -20 17 26.5 U K93
2017-07-13 04:12:01 C 03 18 49.70 -20 11 58.5 U K93
2017-07-15 14:42:14 C 03 30 47.149 -15 45 48.01 U T14
2017-07-15 14:43:43 C 03 30 47.434 -15 45 41.25 U T14
2017-07-15 14:45:09 C 03 30 47.724 -15 45 34.61 U T14
2017-07-21 10:20:01 C 03 58 36.81 -04 45 17.5 U I11
2017-07-21 10:21:07 C 03 58 37.00 -04 45 12.3 U I11
2017-07-21 10:22:16 C 03 58 37.25 -04 45 06.9 U I11
2017-07-21 10:23:22 C 03 58 37.45 -04 45 01.7 U I11