139359 (2001 ME1)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8697804334 ± 2.00e+00
Semi-major axis (a)2.6344145320 AU ± 3.00e+00
Inclination (i)5.95558487° ± 4.00e+00
Long. of Asc. Node (Ω)84.57556111° ± 5.00e+00
Arg. of Perihelion (ω)302.39502915° ± 6.00e+00
Mean Anomaly (M)231.01358098° ± 6.34e-06
Mean Motion (n)0.2305080549°/day ± 3.94e-01
Perihelion dist (q)0.34305232 AU ± 5.28e+00
Aphelion dist (Q)4.92577675 AU ± 7.70e+00
Orbital Period4.27588651 yr ± 7.30e+00
NGA Modelg(r)
A2-2.71168820e-05 AU/d²
Physical Parameters
H (abs. magnitude)16.52
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-27
RMS Residual0.370″
Uncertainty0
Orbit TypeApollo
MOID0.013294 AU
Observations Used728
Oppositions18
Arc Total2001-2025
First Observation Used2001-05-25
Last Observation Used2025-05-31
Observations (769)
Date Type RA Dec Mag Band Observatory
2001-06-24 11:54:12 C 15 25 15.45 -20 40 08.8 428
2001-06-24 11:55:47 C 15 25 13.85 -20 40 05.9 428
2001-06-24 11:56:35 C 15 25 13.05 -20 40 04.5 428
2001-06-24 14:37:07 C 15 22 30.63 -20 36 16.3 360
2001-06-24 14:38:36 C 15 22 29.18 -20 36 13.9 360
2001-06-24 14:40:22 C 15 22 27.34 -20 36 10.3 360
2001-06-24 20:29:36 C 15 16 30.22 -20 24 59.2 151
2001-06-24 20:31:45 C 15 16 27.93 -20 24 54.7 151
2001-06-24 20:40:30 C 15 16 18.66 -20 24 36.7 151
2001-06-24 20:44:39 C 15 16 14.23 -20 24 27.7 151
2001-06-24 20:46:41 C 15 16 12.07 -20 24 23.7 151
2001-06-24 20:48:49 C 15 16 09.79 -20 24 19.5 151
2001-06-24 21:15:02 C 15 15 41.56 -20 23 22.8 595
2001-06-24 21:19:34 C 15 15 36.74 -20 23 12.9 595
2001-06-24 21:23:23 C 15 15 32.64 -20 23 04.7 595
2001-06-25 03:53:55 C 15 08 34.95 -20 08 30.0 711
2001-06-25 03:58:42 C 15 08 29.67 -20 08 18.5 711
2001-06-25 04:03:12 C 15 08 24.66 -20 08 08.1 711
2001-06-25 05:13:44 C 15 07 07.05 -20 05 23.6 670
2001-06-25 06:37:33 C 15 05 32.35 -20 01 55.4 919
2001-06-25 06:39:01 C 15 05 30.72 -20 01 52.2 919
2001-06-25 06:41:02 C 15 05 27.43 -20 01 39.3 c 735
2001-06-25 06:42:18 C 15 05 27.02 -20 01 43.1 919
2001-06-25 06:46:04 C 15 05 21.76 -20 01 26.5 c 735
2001-06-25 06:46:16 C 15 05 23.13 -20 01 36.9 670
2001-06-25 06:58:28 C 15 05 07.88 -20 00 55.5 c 735
2001-06-25 12:03:31 C 14 59 29.09 -19 46 47.4 322
2001-06-25 12:06:31 C 14 59 25.64 -19 46 39.4 322
2001-06-25 13:08:13 C 14 58 13.69 -19 43 52.9 322
2001-06-25 13:48:44 C 14 57 26.24 -19 42 01.3 322
2001-06-25 14:05:27 C 14 57 06.62 -19 41 14.6 322
2001-06-25 14:08:27 C 14 57 03.06 -19 41 06.1 322
2001-06-25 15:18:16 C 14 55 40.93 -19 37 47.9 322
2001-06-25 15:21:44 C 14 55 36.81 -19 37 37.6 322
2001-06-25 20:29:34 C 14 49 36.42 -19 24 04.4 151
2001-06-25 20:32:03 C 14 49 33.12 -19 23 57.5 046
2001-06-25 20:32:08 C 14 49 33.33 -19 23 56.5 151
2001-06-25 20:34:09 C 14 49 30.60 -19 23 51.4 046
2001-06-25 20:34:37 C 14 49 30.31 -19 23 48.9 151
2001-06-25 20:35:21 C 14 49 29.11 -19 23 47.5 046
2001-06-25 20:35:59 C 14 49 28.37 -19 23 45.7 046
2001-06-25 20:41:34 C 14 49 21.89 -19 23 27.4 151
2001-06-25 20:43:33 C 14 49 19.51 -19 23 21.5 151
2001-06-25 20:46:19 C 14 49 16.14 -19 23 13.1 151
2001-06-25 21:20:13 C 14 48 33.67 -19 21 21.5 071
2001-06-25 21:30:11 C 14 48 21.64 -19 20 50.7 071
2001-06-25 21:31:34 C 14 48 20.04 -19 20 46.0 071
2001-06-26 03:28:23 C 14 41 06.22 -19 01 18.3 c 452
2001-06-26 03:30:06 C 14 41 04.05 -19 01 12.0 c 452
2001-06-26 03:31:52 C 14 41 02.01 -19 01 06.0 c 452
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2014-06-18 13:35:00 231067289.38 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)