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
1999-01-15 08:20:51 C 09 57 15.54 +05 48 33.8 c 699
1999-01-15 08:57:40 C 09 57 15.03 +05 48 35.2 c 699
1999-01-15 09:34:24 C 09 57 14.58 +05 48 36.3 c 699
1999-02-12 06:48:34 C 09 25 06.37 +09 23 22.8 17.8 a 704
1999-02-12 07:13:48 C 09 25 03.72 +09 23 41.8 a 704
1999-02-12 07:39:14 C 09 25 00.97 +09 24 01.1 a 704
1999-02-12 08:04:20 C 09 24 58.05 +09 24 20.1 19.5 a 704
1999-02-12 08:29:28 C 09 24 55.64 +09 24 39.4 a 704
1999-02-13 05:10:34 C 09 22 48.51 +09 40 42.0 17.2 a 704
1999-02-13 05:30:38 C 09 22 46.23 +09 40 57.8 17.8 a 704
1999-02-13 05:50:38 C 09 22 44.07 +09 41 14.4 17.6 a 704
1999-02-13 06:10:48 C 09 22 41.79 +09 41 29.7 17.7 a 704
1999-02-13 06:30:55 C 09 22 39.52 +09 41 45.7 17.6 a 704
1999-02-13 13:41:07 C 09 21 53.47 +09 47 59.1 422
1999-02-13 13:42:37 C 09 21 53.30 +09 48 00.4 422
1999-02-13 13:44:11 C 09 21 53.13 +09 48 01.7 422
1999-02-13 13:45:50 C 09 21 52.94 +09 48 02.9 422
1999-02-14 02:44:39 C 09 20 29.00 +09 58 18.4 c 758
1999-02-14 02:49:05 C 09 20 28.48 +09 58 22.4 c 758
1999-02-14 02:53:41 C 09 20 27.95 +09 58 26.1 c 758
1999-02-14 03:03:43 C 09 20 26.80 +09 58 34.4 c 758
1999-02-14 03:11:06 C 09 20 25.92 +09 58 40.7 c 758
1999-02-14 04:33:16 C 09 20 16.28 +09 59 50.0 c 761
1999-02-14 05:15:18 C 09 20 11.39 +10 00 24.5 c 761
1999-02-14 05:22:32 C 09 20 10.71 +10 00 31.0 c 761
1999-02-14 05:26:24 C 09 20 09.61 +10 00 59.4 a 844
1999-02-14 05:38:13 C 09 20 08.13 +10 01 09.8 a 844
1999-02-14 05:41:51 C 09 20 07.75 +10 01 12.6 a 844
1999-02-14 05:46:12 C 09 20 07.22 +10 01 16.0 a 844
1999-02-14 05:47:26 C 09 20 07.08 +10 01 17.1 a 844
1999-02-14 07:59:00 C 09 19 53.22 +10 02 34.3 a 658
1999-02-14 08:02:55 C 09 19 52.76 +10 02 37.8 a 658
1999-02-14 08:08:58 C 09 19 52.06 +10 02 42.8 a 658
1999-02-14 08:36:03 C 09 19 48.26 +10 03 09.4 z 734
1999-02-14 08:56:28 C 09 19 45.89 +10 03 26.2 z 734
1999-02-14 13:07:03 C 09 19 18.89 +10 07 29.1 422
1999-02-14 13:08:06 C 09 19 18.77 +10 07 30.1 422
1999-02-14 13:09:53 C 09 19 18.57 +10 07 31.6 422
1999-02-14 14:04:35 C 09 19 12.40 +10 07 50.5 z 900
1999-02-14 14:22:47 C 09 19 10.25 +10 08 05.9 z 900
1999-02-15 02:14:09 C 09 17 49.69 +10 18 20.6 i 744
1999-02-15 02:33:10 C 09 17 47.63 +10 18 33.1 i 744
1999-02-15 03:09:46 C 09 17 43.03 +10 19 07.9 i 744
1999-02-15 05:03:36 C 09 17 29.57 +10 21 00.3 16.0 z 732
1999-02-15 05:10:20 C 09 17 28.69 +10 21 06.3 16.1 z 732
1999-02-15 05:17:04 C 09 17 27.89 +10 21 12.4 15.8 z 732
1999-02-15 06:21:15 C 09 17 20.48 +10 22 01.9 z 670
1999-02-15 06:47:02 C 09 17 17.32 +10 22 18.5 a 658
1999-02-15 06:47:30 C 09 17 17.28 +10 22 24.9 z 670
1999-02-15 06:49:31 C 09 17 17.01 +10 22 20.8 a 658
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)