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
2006-01-10 11:35:11 C 15 01 09.39 -07 18 44.9 18.3 c 704
2006-01-10 11:55:12 C 15 01 05.10 -07 18 07.7 18.3 c 704
2006-01-11 05:12:54 C 14 57 21.57 -06 46 22.7 o 461
2006-01-11 05:13:25 C 14 57 21.46 -06 46 22.0 o 461
2006-01-11 05:13:56 C 14 57 21.35 -06 46 21.1 o 461
2006-01-11 05:14:28 C 14 57 21.24 -06 46 20.1 o 461
2006-01-11 05:14:59 C 14 57 21.12 -06 46 19.1 o 461
2006-01-11 05:15:29 C 14 57 21.02 -06 46 18.1 o 461
2006-01-11 05:17:36 C 14 57 20.56 -06 46 14.4 o 461
2006-01-11 05:18:05 C 14 57 20.45 -06 46 13.2 o 461
2006-01-11 05:18:36 C 14 57 20.34 -06 46 12.4 o 461
2006-01-13 04:21:55 C 14 47 22.01 -05 19 44.5 r 084
2006-01-21 03:17:10 C 14 07 59.66 +00 29 44.2 r 084
2006-01-22 12:38:51 C 14 01 09.02 +01 30 29.3 c 670
2006-01-22 13:54:16 C 14 00 53.18 +01 32 46.2 c 670
2006-01-27 11:25:27 C 13 36 35.10 +05 03 35.4 r 703
2006-01-27 11:34:48 C 13 36 33.12 +05 03 51.7 r 703
2006-01-27 11:44:09 C 13 36 31.10 +05 04 08.7 r 703
2006-01-27 11:53:27 C 13 36 29.12 +05 04 25.1 r 703
2006-01-31 05:23:23 C 13 17 46.04 +07 39 57.2 c 844
2006-01-31 05:27:36 C 13 17 45.18 +07 40 04.2 c 844
2006-01-31 05:30:14 C 13 17 44.61 +07 40 08.8 c 844
2006-01-31 05:32:53 C 13 17 44.02 +07 40 13.3 c 844
2006-01-31 05:45:56 C 13 17 41.23 +07 40 35.8 c 844
2006-02-06 23:58:36 C 12 43 42.18 +11 58 33.6 r 084
2006-02-07 00:00:44 C 12 43 41.74 +11 58 36.6 r 084
2006-02-09 03:06:19 C 12 33 09.88 +13 11 31.6 r 084
2006-02-09 03:08:26 C 12 33 09.51 +13 11 34.2 r 084
2006-02-09 10:05:16 C 12 31 44.97 +13 21 14.5 o 644
2006-02-09 10:16:17 C 12 31 42.68 +13 21 29.7 o 644
2006-02-09 10:36:57 C 12 31 38.37 +13 21 57.9 o 644
2006-02-09 10:45:58 C 12 31 36.49 +13 22 10.3 o 644
2006-02-09 11:13:58 C 12 31 30.65 +13 22 48.5 o 644
2006-02-09 11:19:30 C 12 31 29.50 +13 22 56.1 o 644
2006-02-10 08:04:24 C 12 27 17.54 +13 50 49.3 o 699
2006-02-10 08:35:54 C 12 27 11.06 +13 51 31.3 o 699
2006-02-10 09:07:22 C 12 27 04.58 +13 52 13.1 o 699
2006-02-10 09:38:52 C 12 26 58.08 +13 52 55.1 o 699
2006-02-21 08:32:35 C 11 37 53.22 +18 29 26.6 r 703
2006-02-21 08:41:05 C 11 37 51.74 +18 29 33.2 r 703
2006-02-21 08:49:35 C 11 37 50.30 +18 29 39.9 r 703
2006-02-21 08:58:05 C 11 37 48.82 +18 29 46.3 r 703
2006-02-21 14:25:40 C 11 36 54.53 +18 33 59.6 r 379
2006-02-21 14:29:47 C 11 36 53.84 +18 34 02.3 r 379
2006-02-21 14:38:02 C 11 36 52.50 +18 34 09.1 r 379
2006-02-21 14:46:16 C 11 36 51.09 +18 34 15.7 r 379
2006-02-26 06:34:55 C 11 19 20.28 +19 48 20.6 o 699
2006-02-26 07:06:27 C 11 19 15.58 +19 48 38.5 o 699
2006-02-26 07:38:00 C 11 19 10.83 +19 48 56.3 o 699
2006-02-26 08:09:35 C 11 19 06.09 +19 49 13.9 o 699
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)