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
2006-02-27 21:20:03 C 11 13 48.01 +20 08 44.4 r 240
2006-02-27 21:22:58 C 11 13 47.59 +20 08 46.0 r 240
2006-02-27 21:25:51 C 11 13 47.18 +20 08 47.3 r 240
2006-02-27 21:27:19 C 11 13 46.98 +20 08 48.1 r 240
2006-02-27 21:28:46 C 11 13 46.78 +20 08 49.0 r 240
2006-02-27 21:31:40 C 11 13 46.35 +20 08 50.3 r 240
2006-03-03 05:50:35 C 11 03 11.38 +20 43 35.5 o 699
2006-03-03 06:27:26 C 11 03 06.69 +20 43 49.3 o 699
2006-03-03 07:15:11 C 11 03 00.62 +20 44 07.2 o 699
2006-03-03 07:54:17 C 11 02 55.65 +20 44 22.1 o 699
2006-03-09 05:21:38 C 10 47 14.42 +21 23 29.2 r 703
2006-03-09 05:30:34 C 10 47 13.52 +21 23 31.3 r 703
2006-03-09 05:39:34 C 10 47 12.62 +21 23 33.7 r 703
2006-03-09 05:48:37 C 10 47 11.65 +21 23 34.9 r 703
2006-03-19 07:14:27 C 10 28 09.52 +21 44 02.4 18.4 c 704
2006-03-19 07:30:19 C 10 28 08.53 +21 44 02.7 18.7 c 704
2006-03-19 07:46:10 C 10 28 07.75 +21 44 01.7 18.6 c 704
2006-03-19 08:02:01 C 10 28 06.73 +21 44 01.6 18.6 c 704
2006-03-19 08:08:24 C 10 28 06.30 +21 44 00.8 o 699
2006-03-19 08:17:52 C 10 28 05.50 +21 44 01.5 18.7 c 704
2006-03-19 08:29:24 C 10 28 05.01 +21 44 00.4 o 699
2006-03-19 08:50:26 C 10 28 03.63 +21 43 59.5 o 699
2006-03-19 09:11:28 C 10 28 02.32 +21 43 59.9 o 699
2006-03-19 19:34:04 C 10 27 25.67 +21 43 53.5 o 151
2006-03-19 19:35:47 C 10 27 25.60 +21 43 53.3 o 151
2006-03-19 19:37:30 C 10 27 25.52 +21 43 53.0 o 151
2006-03-19 19:40:53 C 10 27 25.25 +21 43 53.1 o 151
2006-03-19 19:42:36 C 10 27 25.15 +21 43 53.0 o 151
2006-03-19 19:44:19 C 10 27 25.04 +21 43 53.0 o 151
2006-03-19 21:07:41 C 10 27 20.00 +21 43 52.0 o A62
2006-03-19 21:10:09 C 10 27 19.84 +21 43 51.7 o A62
2006-03-19 21:12:37 C 10 27 19.65 +21 43 51.5 o A62
2006-03-19 21:13:52 C 10 27 19.60 +21 43 52.0 o A62
2006-03-19 21:16:23 C 10 27 19.47 +21 43 52.0 o A62
2006-03-19 21:18:53 C 10 27 19.28 +21 43 51.6 o A62
2006-03-19 21:20:02 C 10 27 19.21 +21 43 51.8 o A62
2006-03-19 21:22:21 C 10 27 19.08 +21 43 51.7 o A62
2006-03-19 21:23:34 C 10 27 19.01 +21 43 51.6 o A62
2006-03-19 21:24:51 C 10 27 18.93 +21 43 51.6 o A62
2006-03-19 21:26:13 C 10 27 18.82 +21 43 51.8 o A62
2006-03-22 05:32:44 C 10 24 12.57 +21 42 17.0 18.4 c 704
2006-03-22 05:48:42 C 10 24 11.68 +21 42 16.6 18.8 c 704
2006-03-22 06:04:48 C 10 24 10.85 +21 42 15.7 18.7 c 704
2006-03-22 06:20:50 C 10 24 09.99 +21 42 14.9 18.7 c 704
2006-03-22 06:36:51 C 10 24 09.09 +21 42 13.9 18.7 c 704
2006-03-25 04:34:32 C 10 20 50.49 +21 37 55.2 r 703
2006-03-25 04:43:17 C 10 20 50.10 +21 37 54.8 r 703
2006-03-25 04:52:00 C 10 20 49.70 +21 37 54.2 r 703
2006-03-25 05:00:41 C 10 20 49.30 +21 37 53.5 r 703
2006-03-27 04:03:49 C 10 18 54.73 +21 33 44.4 r H85
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)