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
2025-02-23 00:18:43 C 12 12 02.74 -00 25 39.7 Y 557
2025-02-23 00:23:28 C 12 12 03.689 -00 24 24.44 V M22
2025-02-23 01:14:15 B 12 12 16.234 -00 25 24.74 W L92
2025-02-23 01:18:20 B 12 12 17.056 -00 25 25.69 W L92
2025-02-23 01:23:26 B 12 12 18.354 -00 25 25.01 W L92
2025-02-23 01:27:02 C 12 12 18.941 -00 25 29.75 V L54
2025-02-23 01:28:33 B 12 12 19.586 -00 25 24.38 W L92
2025-02-23 01:33:39 B 12 12 20.886 -00 25 22.77 W L92
2025-02-23 01:38:45 B 12 12 22.098 -00 25 23.25 W L92
2025-02-23 01:43:51 B 12 12 23.261 -00 25 23.34 W L92
2025-02-23 21:55:56 C 12 17 51.66 -00 22 56.7 Y 557
2025-02-23 22:55:29 C 12 18 08.07 -00 22 48.4 Y 557
2025-02-23 23:56:12 C 12 18 24.83 -00 22 39.7 Y 557
2025-02-24 09:46:58 C 12 21 18.364 -00 20 54.56 V 703
2025-02-24 09:50:13 C 12 21 19.296 -00 20 54.20 V 703
2025-02-24 09:53:29 C 12 21 20.243 -00 20 53.34 V 703
2025-02-24 09:56:45 C 12 21 21.186 -00 20 53.09 V 703
2025-02-24 21:41:41 C 12 25 06.247 -00 19 06.56 Z C23
2025-02-24 21:51:00 C 12 25 09.283 -00 19 04.87 Z C23
2025-02-24 22:00:27 C 12 25 12.276 -00 19 03.07 Z C23
2025-02-25 01:55:18 B 12 26 31.63 -00 17 23.5 Z X33
2025-02-25 01:57:51 B 12 26 32.44 -00 17 23.2 Z X33
2025-02-25 02:00:24 B 12 26 33.29 -00 17 22.3 Z X33
2025-02-25 06:18:33 C 12 27 57.523 -00 16 00.70 V W68
2025-02-25 06:20:31 C 12 27 58.164 -00 16 00.41 V W68
2025-02-25 06:23:07 C 12 27 59.021 -00 15 59.69 V W68
2025-02-25 06:25:04 C 12 27 59.657 -00 16 00.26 V W68
2025-02-25 06:32:54 C 12 28 02.215 -00 15 57.64 V W68
2025-02-25 06:34:52 C 12 28 02.863 -00 15 58.39 V W68
2025-02-25 20:47:39 C 12 33 10.77 -00 14 25.6 q 168
2025-02-25 20:53:17 C 12 33 14.786 -00 14 14.96 V L54
2025-02-25 21:15:35 C 12 33 21.01 -00 14 18.9 q 168
2025-02-25 21:43:57 C 12 33 33.33 -00 14 05.9 V M32
2025-02-25 21:46:09 C 12 33 34.16 -00 14 05.4 V M32
2025-02-25 21:47:39 C 12 33 32.79 -00 14 11.4 q 168
2025-02-25 21:48:40 C 12 33 35.10 -00 14 04.6 V M32
2025-02-25 21:50:52 C 12 33 35.90 -00 14 04.2 V M32
2025-02-25 21:53:05 C 12 33 36.71 -00 14 03.7 V M32
2025-02-25 22:13:34 C 12 33 42.34 -00 14 05.3 q 168
2025-02-25 22:41:38 C 12 33 52.71 -00 13 58.7 q 168
2025-02-25 23:15:18 C 12 34 07.138 -00 13 41.30 V L54
2025-02-25 23:15:36 C 12 34 05.31 -00 13 51.0 q 168
2025-02-25 23:43:39 C 12 34 15.76 -00 13 44.3 q 168
2025-02-26 01:41:45 C 12 35 01.526 -00 13 07.00 V L54
2025-02-26 10:21:39 C 12 38 29.674 -00 10 42.28 V 703
2025-02-26 10:24:55 C 12 38 30.962 -00 10 41.34 V 703
2025-02-26 10:28:11 C 12 38 32.244 -00 10 40.55 V 703
2025-02-26 10:31:27 C 12 38 33.533 -00 10 39.68 V 703
2025-02-26 11:32:51 C 12 39 01.286 -00 10 09.59 V T05
2025-02-26 11:35:27 C 12 39 02.316 -00 10 08.98 V T05
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)