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
2025-10-19 18:10:30 C 01 55 04.660 +03 06 15.69 W O18
2025-10-20 16:06:51 C 01 53 33.342 +02 57 19.09 W O18
2025-10-20 18:25:16 C 01 53 23.522 +02 56 23.15 W O18
2025-10-21 16:28:29 C 01 51 52.49 +02 47 36.6 V D29
2025-10-21 16:47:34 C 01 51 51.15 +02 47 29.3 V D29
2025-10-21 16:48:51 C 01 51 51.05 +02 47 28.9 V D29
2025-10-21 17:07:56 C 01 51 49.73 +02 47 21.0 V D29
2025-10-21 17:09:12 C 01 51 49.61 +02 47 20.2 V D29
2025-10-22 16:07:31 C 01 50 15.94 +02 38 23.5 V D29
2025-10-22 16:27:53 C 01 50 14.49 +02 38 15.4 V D29
2025-10-22 16:48:15 C 01 50 13.10 +02 38 07.9 V D29
2025-10-24 16:44:28 C 01 47 01.345 +02 20 09.18 W O18
2025-10-24 18:01:00 C 01 46 56.186 +02 19 41.11 W O18
2025-10-27 16:49:48 C 01 42 23.711 +01 55 01.04 W O18
2025-10-27 17:43:47 C 01 42 20.257 +01 54 42.92 W O18
2025-10-27 18:35:50 C 01 42 16.926 +01 54 25.79 W O18
2025-10-28 15:54:11 C 01 40 58.076 +01 47 28.19 W O18
2025-10-28 16:46:08 C 01 40 54.812 +01 47 11.73 W O18
2025-10-28 18:01:13 C 01 40 50.089 +01 46 47.61 W O18
2025-10-30 04:17:07 C 01 38 46.403 +01 36 07.09 V G96
2025-10-30 04:32:07 C 01 38 45.492 +01 36 00.47 V G96
2025-10-30 04:39:36 C 01 38 45.006 +01 35 59.32 V G96
2025-10-31 17:14:42 C 01 36 36.621 +01 25 10.87 W O18
2025-10-31 18:10:45 C 01 36 33.326 +01 24 54.72 W O18
2025-11-01 17:31:03 C 01 35 14.087 +01 18 22.84 W O18
2025-11-01 18:40:18 C 01 35 10.099 +01 18 03.77 W O18
2025-11-01 18:42:05 C 01 35 09.994 +01 18 03.26 W O18
2025-11-02 18:08:30 C 01 33 52.428 +01 11 46.82 W O18
2025-11-02 18:46:40 C 01 33 50.295 +01 11 36.83 W O18
2025-11-02 18:47:42 C 01 33 50.252 +01 11 36.36 W O18
2025-11-09 15:30:51 C 01 25 42.917 +00 35 15.03 W O18
2025-11-09 17:31:31 C 01 25 37.425 +00 34 53.48 W O18
2025-11-11 08:58:48 C 01 23 56.573 +00 28 14.71 X F51
2025-11-11 09:15:26 C 01 23 55.862 +00 28 12.04 X F51
2025-11-11 09:48:49 C 01 23 54.424 +00 28 06.77 X F51
2025-11-11 13:28:20 C 01 23 45.725 +00 27 30.28 W O18
2025-11-11 17:23:25 C 01 23 35.772 +00 26 53.36 W O18
2025-11-13 03:20:54 C 01 22 15.05 +00 22 00.9 W W84
2025-11-13 03:47:47 C 01 22 13.97 +00 21 57.2 W W84
2025-11-13 04:05:43 C 01 22 13.26 +00 21 54.5 W W84
2025-11-13 04:23:40 C 01 22 12.54 +00 21 52.1 W W84
2025-11-15 17:24:04 C 01 19 59.245 +00 14 10.82 W O18
2025-11-15 18:13:18 C 01 19 57.497 +00 14 05.40 W O18
2025-11-19 15:23:52 C 01 17 03.163 +00 05 55.51 W O18
2025-11-19 17:06:20 C 01 17 00.146 +00 05 48.51 W O18
2025-11-20 15:03:19 C 01 16 24.361 +00 04 28.46 W O18
2025-11-20 16:56:57 C 01 16 21.198 +00 04 22.09 W O18
2025-11-23 00:41:11 C 01 14 59.12 +00 02 04.8 W W84
2025-11-23 02:15:25 C 01 14 56.85 +00 02 01.8 W W84
2025-11-23 02:51:49 C 01 14 55.97 +00 02 00.7 W W84
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)