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
2006-09-29 04:53:30 C 00 50 08.12 -02 27 29.3 r 808
2006-09-29 05:03:29 C 00 50 07.42 -02 27 35.0 r 808
2006-09-30 07:11:12 C 00 47 53.69 -02 44 13.0 19.1 c 704
2006-09-30 07:28:50 C 00 47 52.14 -02 44 23.9 19.0 c 704
2006-09-30 07:46:28 C 00 47 50.60 -02 44 34.2 18.3 c 704
2006-09-30 08:04:06 C 00 47 49.03 -02 44 46.3 18.6 c 704
2006-10-16 04:54:40 C 00 21 52.81 -05 34 48.0 r 703
2006-10-16 05:03:53 C 00 21 52.30 -05 34 50.2 r 703
2006-10-16 05:13:05 C 00 21 51.91 -05 34 53.6 r 703
2006-10-16 05:22:18 C 00 21 51.40 -05 34 54.7 r 703
2006-10-20 03:43:28 C 00 17 28.59 -05 58 05.6 o 644
2006-10-20 04:12:38 C 00 17 27.35 -05 58 11.9 o 644
2006-10-20 04:41:51 C 00 17 26.04 -05 58 18.3 o 644
2006-10-21 03:41:40 C 00 16 29.61 -06 02 54.5 o 644
2006-10-21 04:15:27 C 00 16 28.18 -06 03 01.2 o 644
2006-10-21 04:46:43 C 00 16 26.88 -06 03 07.1 o 644
2006-10-22 05:47:55 C 00 15 28.47 -06 07 40.2 r 703
2006-10-22 05:57:08 C 00 15 28.08 -06 07 41.1 r 703
2006-10-22 06:06:21 C 00 15 27.72 -06 07 43.8 r 703
2006-10-22 06:15:40 C 00 15 27.39 -06 07 45.8 r 703
2011-10-28 07:53:28 C 02 59 24.90 +08 23 08.7 r G96
2011-10-28 08:01:47 C 02 59 24.36 +08 23 05.8 r G96
2011-10-28 08:10:07 C 02 59 23.78 +08 23 03.5 r G96
2011-10-28 08:18:30 C 02 59 23.24 +08 23 00.4 r G96
2012-12-25 04:46:05 C 07 36 51.71 +13 39 34.9 u 807
2012-12-25 04:54:46 C 07 36 51.19 +13 39 35.6 u 807
2012-12-25 05:03:26 C 07 36 50.68 +13 39 36.4 u 807
2012-12-25 05:12:06 C 07 36 50.18 +13 39 37.2 u 807
2012-12-25 05:20:45 C 07 36 49.66 +13 39 37.8 u 807
2013-04-29 03:24:20 C 06 56 59.41 +22 24 23.4 o 291
2013-04-29 03:27:16 C 06 56 59.66 +22 24 23.5 o 291
2013-04-29 03:30:13 C 06 56 59.90 +22 24 23.8 o 291
2013-04-30 06:05:49 C 06 59 15.041 +22 26 12.99 L F51
2013-04-30 06:19:11 C 06 59 16.138 +22 26 13.66 L F51
2013-04-30 06:25:53 C 06 59 16.704 +22 26 13.97 L F51
2013-05-03 06:13:39 C 07 05 32.571 +22 30 20.05 L F51
2013-05-03 06:20:45 C 07 05 33.197 +22 30 20.25 L F51
2013-05-03 06:27:51 C 07 05 33.824 +22 30 20.52 L F51
2013-05-12 03:43:19 C 07 25 43.10 +22 35 31.5 u G96
2013-05-12 03:50:54 C 07 25 43.86 +22 35 31.3 u G96
2013-05-12 03:58:39 C 07 25 44.65 +22 35 31.8 u G96
2013-05-12 04:06:23 C 07 25 45.44 +22 35 31.2 u G96
2013-06-10 03:34:44 C 08 45 26.52 +21 27 10.1 o 291
2013-06-10 03:37:09 C 08 45 26.81 +21 27 09.7 o 291
2013-06-10 03:39:35 C 08 45 27.13 +21 27 09.3 o 291
2013-08-18 22:35:48 C 14 06 43.57 +06 50 37.8 r Y00
2013-08-18 22:36:23 C 14 06 44.20 +06 50 35.5 r Y00
2013-08-18 22:36:57 C 14 06 44.74 +06 50 32.5 r Y00
2013-08-19 20:18:18 C 14 31 27.80 +04 47 40.6 c C23
2013-08-19 20:19:27 C 14 31 29.16 +04 47 33.1 c C23
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)