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
2001-06-26 03:36:26 C 14 40 56.09 -19 00 50.5 c 452
2001-06-26 03:38:11 C 14 40 53.93 -19 00 44.4 c 452
2001-06-26 03:39:53 C 14 40 51.74 -19 00 38.7 c 452
2001-06-26 03:41:36 C 14 40 49.64 -19 00 32.7 c 452
2001-06-26 03:43:18 C 14 40 47.50 -19 00 26.8 c 452
2001-06-26 03:53:53 C 14 40 34.18 -18 59 50.4 c 452
2001-06-26 03:56:36 C 14 40 30.80 -18 59 40.8 c 452
2001-06-26 03:59:17 C 14 40 27.39 -18 59 31.3 c 452
2001-06-26 10:01:04 C 14 32 56.05 -18 36 56.8 428
2001-06-26 10:01:50 C 14 32 55.04 -18 36 53.8 428
2001-06-26 10:02:36 C 14 32 54.02 -18 36 50.9 428
2001-06-26 10:03:24 C 14 32 52.99 -18 36 47.9 428
2001-06-27 20:50:21 C 13 45 32.95 -15 56 43.0 118
2001-06-27 20:52:48 C 13 45 29.43 -15 56 29.4 118
2001-06-27 20:53:43 C 13 45 28.08 -15 56 24.0 118
2001-06-27 20:59:03 C 13 45 20.53 -15 55 55.0 046
2001-06-27 21:00:26 C 13 45 18.52 -15 55 46.8 046
2001-06-27 21:01:39 C 13 45 16.75 -15 55 40.0 046
2001-06-27 21:02:11 C 13 45 15.99 -15 55 38.1 046
2001-06-30 05:21:03 C 12 22 47.57 -09 32 19.8 c 670
2001-06-30 05:39:45 C 12 22 20.58 -09 29 56.3 c 670
2001-07-03 09:17:01 C 10 47 53.90 -00 24 33.7 c 413
2001-07-03 09:18:23 C 10 47 52.50 -00 24 25.5 c 413
2001-07-03 09:19:46 C 10 47 51.05 -00 24 16.6 c 413
2001-07-04 08:15:35 C 10 25 45.00 +01 48 27.5 c 413
2001-07-04 08:17:02 C 10 25 43.66 +01 48 35.2 c 413
2001-07-04 08:23:21 C 10 25 37.89 +01 49 09.4 c 413
2001-07-04 08:24:48 C 10 25 36.59 +01 49 17.0 c 413
2001-07-04 08:26:16 C 10 25 35.24 +01 49 24.8 c 413
2002-01-19 10:44:07 C 13 14 54.04 -00 31 25.4 d 291
2002-01-19 11:31:46 C 13 14 53.74 -00 31 17.8 d 291
2002-01-19 12:14:05 C 13 14 53.45 -00 31 10.9 d 291
2002-01-19 12:45:07 C 13 14 53.27 -00 31 06.9 d 691
2002-01-19 12:54:54 C 13 14 53.18 -00 31 05.0 d 691
2002-01-19 13:05:05 C 13 14 53.10 -00 31 02.7 d 691
2005-04-19 13:50:07 C 16 02 15.50 -15 54 33.5 F65
2005-04-19 13:52:52 C 16 02 15.37 -15 54 33.5 F65
2005-04-19 13:55:32 C 16 02 15.26 -15 54 33.2 F65
2005-04-19 13:58:28 C 16 02 15.18 -15 54 33.0 F65
2005-05-10 07:54:01 C 15 37 49.28 -14 27 50.1 d 291
2005-05-10 08:04:25 C 15 37 48.64 -14 27 48.1 r G96
2005-05-10 08:12:19 C 15 37 48.19 -14 27 47.6 d 291
2005-05-10 08:13:57 C 15 37 48.08 -14 27 46.1 r G96
2005-05-10 08:23:29 C 15 37 47.56 -14 27 43.6 r G96
2005-05-10 08:28:05 C 15 37 47.22 -14 27 43.2 d 291
2005-05-10 08:33:04 C 15 37 46.91 -14 27 42.3 r G96
2005-06-11 05:44:43 C 14 49 57.20 -11 47 09.1 d 291
2005-06-11 05:51:24 C 14 49 56.78 -11 47 08.5 d 291
2005-06-11 05:57:06 C 14 49 56.52 -11 47 07.6 d 291
2006-01-10 11:16:13 C 15 01 13.59 -07 19 19.6 17.7 c 704
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)