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
2019-03-07 12:26:11 C 11 42 06.10 +14 39 54.1 V T08
2019-03-09 06:46:11 C 11 37 58.94 +15 00 23.4 V 703
2019-03-09 06:53:47 C 11 37 58.20 +15 00 26.4 V 703
2019-03-09 07:01:23 C 11 37 57.47 +15 00 30.8 V 703
2019-03-09 07:08:58 C 11 37 56.70 +15 00 34.3 V 703
2019-03-12 00:29:11 C 11 31 49.51 +15 29 16.5 18.2 q J43
2019-03-12 00:41:30 C 11 31 48.38 +15 29 21.5 18.1 q J43
2019-03-12 00:53:47 C 11 31 47.22 +15 29 26.5 18.1 q J43
2019-03-12 01:06:03 C 11 31 46.08 +15 29 31.7 18.1 q J43
2019-03-13 00:41:19 C 11 29 38.38 +15 39 00.0 17.9 q J43
2019-03-13 00:53:30 C 11 29 37.28 +15 39 05.0 18.1 q J43
2019-03-13 01:05:38 C 11 29 36.18 +15 39 09.6 18.0 q J43
2019-03-13 01:17:44 C 11 29 35.07 +15 39 14.3 18.1 q J43
2019-03-15 07:03:50 C 11 24 54.32 +15 59 04.8 V 703
2019-03-15 07:11:56 C 11 24 53.62 +15 59 07.9 V 703
2019-03-15 07:20:02 C 11 24 52.89 +15 59 10.1 V 703
2019-03-15 07:28:07 C 11 24 52.23 +15 59 13.6 V 703
2019-03-15 10:08:33 C 11 24 38.69 +16 00 10.8 V T08
2019-03-15 10:16:14 C 11 24 38.01 +16 00 13.1 V T08
2019-03-15 10:31:13 C 11 24 36.69 +16 00 18.6 V T08
2019-03-15 10:47:42 C 11 24 35.31 +16 00 24.1 V T08
2019-03-24 21:55:16 C 11 07 40.43 +16 58 59.4 V 130
2019-03-24 21:59:02 C 11 07 40.16 +16 59 00.2 V 130
2019-03-24 22:03:11 C 11 07 39.89 +16 59 01.0 V 130
2019-03-26 07:01:20 C 11 05 35.64 +17 04 32.0 V 703
2019-03-26 07:16:31 C 11 05 34.72 +17 04 35.6 V 703
2019-03-26 07:24:05 C 11 05 34.12 +17 04 38.3 V 703
2019-03-26 14:29:13 C 11 05 08.56 +17 05 41.9 q D29
2019-03-26 14:30:29 C 11 05 08.49 +17 05 42.3 q D29
2019-03-26 14:49:35 C 11 05 07.29 +17 05 45.4 q D29
2019-03-26 14:50:51 C 11 05 07.20 +17 05 45.1 q D29
2019-03-26 15:09:57 C 11 05 06.03 +17 05 48.4 q D29
2019-03-26 15:11:13 C 11 05 05.93 +17 05 48.8 q D29
2019-03-29 09:48:38 C 11 01 15.94 +17 14 35.3 V T05
2019-03-29 09:59:20 C 11 01 15.32 +17 14 36.4 V T05
2019-03-29 09:59:59 C 11 01 15.27 +17 14 36.5 V T05
2019-03-29 10:14:50 C 11 01 14.52 +17 14 38.3 V T05
2019-03-31 06:47:59 C 10 58 54.09 +17 19 01.2 V 703
2019-03-31 06:56:11 C 10 58 53.63 +17 19 01.8 V 703
2019-03-31 07:04:23 C 10 58 53.25 +17 19 02.9 V 703
2019-03-31 07:12:35 C 10 58 52.82 +17 19 02.9 V 703
2019-03-31 14:44:45 C 10 58 30.20 +17 19 41.5 q D29
2019-03-31 15:05:07 C 10 58 29.18 +17 19 43.1 q D29
2019-03-31 15:25:29 C 10 58 28.12 +17 19 44.6 q D29
2019-04-01 13:37:05 C 10 57 23.25 +17 21 25.9 q D29
2019-04-01 13:57:26 C 10 57 22.25 +17 21 27.1 q D29
2019-04-01 14:17:48 C 10 57 21.23 +17 21 29.1 q D29
2019-04-02 09:53:48 C 10 56 25.85 +17 22 46.8 V T05
2019-04-02 10:10:43 C 10 56 25.00 +17 22 47.3 V T05
2019-04-02 10:11:23 C 10 56 24.95 +17 22 47.4 V T05
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)