137126 (1999 CF9)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6008300378 ± 2.00e+00
Semi-major axis (a)1.7700615799 AU ± 3.00e+00
Inclination (i)5.54396360° ± 4.00e+00
Long. of Asc. Node (Ω)156.84544990° ± 5.00e+00
Arg. of Perihelion (ω)90.61272758° ± 6.00e+00
Mean Anomaly (M)88.13582052° ± 4.25e-07
Mean Motion (n)0.4185330061°/day ± 1.06e+00
Perihelion dist (q)0.70655541 AU ± 3.74e+00
Aphelion dist (Q)2.83356775 AU ± 5.97e+00
Orbital Period2.35495473 yr ± 5.99e+00
NGA Modelr2
A2-1.50216202e-06 AU/d²
Physical Parameters
H (abs. magnitude)18.08
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.304″
Uncertainty0
Orbit TypeApollo
MOID0.017566 AU
Observations Used1164
Oppositions15
Arc Total1999-2025
First Observation Used1999-01-15
Last Observation Used2025-12-24
Observations (1221)
Date Type RA Dec Mag Band Observatory
2013-08-27 03:12:41 C 18 38 35.92 -14 17 21.8 r Y00
2013-08-27 03:13:15 C 18 38 36.56 -14 17 24.2 r Y00
2013-08-27 20:29:49 C 18 56 54.79 -15 15 45.2 a 233
2013-08-27 20:31:14 C 18 56 56.18 -15 15 49.6 a 233
2013-08-27 20:32:29 C 18 56 57.40 -15 15 53.2 a 233
2013-08-27 20:34:17 C 18 56 59.13 -15 15 58.4 a 233
2013-08-27 20:36:00 C 18 57 00.82 -15 16 03.3 a 233
2013-08-27 22:11:23 C 18 58 35.59 -15 20 21.4 q G40
2013-08-27 22:26:26 C 18 58 50.02 -15 21 04.1 q G40
2013-08-27 22:42:16 C 18 59 05.16 -15 21 48.6 q G40
2013-08-27 22:46:20 C 18 59 09.06 -15 22 00.2 q G40
2013-08-28 21:37:20 C 19 20 00.52 -16 18 26.3 q A13
2013-08-28 21:39:24 C 19 20 02.22 -16 18 30.5 q A13
2013-08-28 21:41:29 C 19 20 03.94 -16 18 35.1 q A13
2013-08-28 21:44:35 C 19 20 06.51 -16 18 41.4 q A13
2013-08-28 21:55:51 C 19 20 15.81 -16 19 04.7 q A13
2013-08-28 21:57:52 C 19 20 17.47 -16 19 09.0 q A13
2013-08-28 21:59:54 C 19 20 19.15 -16 19 13.2 q A13
2013-08-28 22:15:23 C 19 20 31.93 -16 19 45.0 q A13
2013-08-28 22:23:00 C 19 20 38.19 -16 20 00.4 q A13
2013-08-30 02:43:06 C 19 42 19.22 -17 07 43.6 r Y00
2013-08-30 02:43:50 C 19 42 19.72 -17 07 44.5 r Y00
2013-08-30 02:44:35 C 19 42 20.24 -17 07 45.6 r Y00
2013-08-30 02:50:16 C 19 42 28.74 -17 09 08.6 i G41
2013-08-30 03:05:16 C 19 42 38.80 -17 09 29.9 i G41
2013-08-30 03:20:15 C 19 42 49.00 -17 09 51.3 i G41
2013-08-30 21:24:35 C 19 54 38.46 -17 32 28.9 q G40
2013-08-30 21:25:43 C 19 54 39.13 -17 32 30.2 q G40
2013-08-30 22:54:48 C 19 55 31.78 -17 34 08.1 q G40
2013-08-30 22:55:56 C 19 55 32.41 -17 34 09.6 q G40
2013-08-30 23:24:58 C 19 55 49.47 -17 34 39.9 q G40
2013-08-31 03:43:20 C 19 58 21.45 -17 38 00.8 r Y00
2013-08-31 03:44:15 C 19 58 22.07 -17 38 01.9 r Y00
2013-08-31 03:45:08 C 19 58 22.61 -17 38 02.9 r Y00
2013-08-31 21:46:26 C 20 08 30.23 -17 55 33.3 q J53
2013-08-31 21:46:53 C 20 08 30.46 -17 55 33.8 q J53
2013-08-31 21:48:29 C 20 08 31.28 -17 55 35.0 q J53
2013-08-31 21:55:53 C 20 08 35.02 -17 55 40.6 q J53
2013-09-01 11:39:24 C 20 15 30.72 -18 04 16.5 q Q62
2013-09-01 11:57:02 C 20 15 39.19 -18 04 31.2 q Q62
2013-09-01 12:22:13 C 20 15 50.64 -18 04 45.1 q Q62
2013-09-02 02:59:41 C 20 22 33.46 -18 13 29.1 r Y00
2013-09-02 03:00:44 C 20 22 33.91 -18 13 29.4 r Y00
2013-09-02 03:01:48 C 20 22 34.34 -18 13 30.0 r Y00
2013-09-02 19:57:49 C 20 29 44.69 -18 22 29.2 q K48
2013-09-02 19:58:54 C 20 29 45.13 -18 22 30.2 q K48
2013-09-02 20:00:00 C 20 29 45.58 -18 22 30.7 q K48
2013-09-02 20:01:07 C 20 29 46.00 -18 22 31.2 q K48
2013-09-02 20:52:48 C 20 30 05.87 -18 22 52.6 q K48
2013-09-02 20:53:56 C 20 30 06.32 -18 22 53.0 q K48
Radar Observations (12)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2013-08-21 03:10:00 319773.944 1.5 Hz 8560 -14 -14
2013-08-21 04:00:00 66346826.79 10 us 8560 -14 -14
2013-08-21 04:30:00 66282046.75 2 us 8560 -14 -14
2013-08-22 03:40:00 63921527.254 4 us 8560 -14 -14
2013-08-22 04:20:00 139016.798 2 Hz 8560 -14 -14
2013-08-23 03:20:00 63238391.082 2 us 8560 -14 -14
2013-08-23 03:40:00 -33068.671 1.5 Hz 8560 -14 -14
2013-08-25 01:20:00 66987518.311 2 us 8560 -14 -14
2025-03-08 09:30:00 -51357.8 2 Hz 8560 -14 -14
2025-03-08 10:20:00 52842415 2 us 8560 -14 -14
2025-03-08 10:50:00 52855887 1 us 8560 -14 -14
2025-03-10 16:10:00 59591765 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)