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
2015-03-23 12:31:01 C 12 25 00.080 +06 24 46.37 L F51
2015-03-24 10:05:47 C 12 23 52.699 +06 31 34.17 L F51
2015-03-24 10:26:37 C 12 23 51.604 +06 31 40.65 L F51
2015-03-24 11:08:26 C 12 23 49.380 +06 31 53.74 L F51
2015-03-25 04:47:21 C 12 22 54.56 +06 37 21.7 o 691
2015-03-25 05:26:32 C 12 22 52.46 +06 37 34.2 o 691
2015-03-25 05:55:04 C 12 22 51.02 +06 37 42.7 o 691
2015-04-16 09:50:49 C 11 58 26.393 +08 44 10.08 L F51
2015-04-16 10:07:35 C 11 58 25.747 +08 44 12.61 L F51
2015-04-16 10:24:19 C 11 58 25.090 +08 44 15.38 L F51
2015-04-16 10:41:06 C 11 58 24.458 +08 44 18.04 L F51
2015-04-18 09:50:36 C 11 56 40.243 +08 51 28.19 L F51
2015-04-18 10:07:21 C 11 56 39.631 +08 51 30.60 L F51
2015-04-18 10:24:10 C 11 56 39.002 +08 51 32.87 L F51
2015-04-18 10:41:06 C 11 56 38.384 +08 51 35.48 L F51
2018-05-09 17:20:57 C 15 50 05.49 -15 22 28.2 q D29
2018-05-09 17:41:19 C 15 50 04.24 -15 22 23.1 q D29
2018-05-13 01:33:43 C 15 45 01.71 -15 06 11.6 c J04
2018-05-13 01:50:33 C 15 45 00.64 -15 06 07.9 c J04
2018-05-13 02:07:23 C 15 44 59.49 -15 06 04.5 c J04
2018-05-13 02:24:13 C 15 44 58.41 -15 06 01.0 c J04
2018-05-15 07:30:56 C 15 41 28.94 -14 54 48.4 U G96
2018-05-15 07:38:22 C 15 41 28.43 -14 54 46.7 U G96
2018-05-15 07:45:51 C 15 41 27.94 -14 54 45.3 U G96
2018-05-15 07:53:17 C 15 41 27.40 -14 54 43.7 U G96
2018-05-21 08:15:51 C 15 31 31.50 -14 22 48.3 U 703
2018-05-21 08:23:27 C 15 31 30.99 -14 22 45.9 U 703
2018-05-21 08:38:37 C 15 31 29.93 -14 22 43.5 U 703
2018-06-06 07:29:29 C 15 04 04.51 -12 54 34.8 U 703
2018-06-06 07:52:26 C 15 04 02.85 -12 54 28.3 U 703
2018-06-06 08:56:09 C 15 03 58.553 -12 54 12.63 U F51
2018-06-06 09:12:28 C 15 03 57.390 -12 54 08.95 U F51
2018-06-06 09:28:45 C 15 03 56.225 -12 54 05.34 U F51
2018-06-13 10:44:17 C 14 52 28.99 -12 18 02.7 U T05
2018-06-13 11:07:04 C 14 52 27.41 -12 17 56.7 U T05
2018-06-13 11:10:22 C 14 52 27.18 -12 17 56.4 U T05
2018-06-13 11:37:02 C 14 52 25.41 -12 17 51.0 U T05
2018-06-13 13:18:00 C 14 52 19.16 -12 17 32.3 q D29
2018-06-13 13:58:44 C 14 52 16.48 -12 17 23.7 q D29
2018-06-18 06:32:26 C 14 45 15.40 -11 56 03.7 U 703
2018-06-18 06:40:03 C 14 45 14.99 -11 56 03.4 U 703
2018-06-18 06:47:39 C 14 45 14.53 -11 56 01.4 U 703
2018-06-18 06:55:16 C 14 45 14.01 -11 56 00.5 U 703
2018-06-19 04:23:12 C 14 43 57.96 -11 52 13.6 U G96
2018-06-19 04:30:34 C 14 43 57.53 -11 52 12.0 U G96
2018-06-19 04:37:56 C 14 43 57.08 -11 52 10.9 U G96
2018-06-19 04:45:19 C 14 43 56.66 -11 52 10.2 U G96
2018-07-15 12:33:26 C 14 18 16.25 -10 56 16.5 q D29
2018-07-15 12:52:31 C 14 18 15.82 -10 56 17.1 q D29
2018-12-09 13:16:07 C 14 03 15.89 -08 37 14.0 U I41
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)