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
1999-03-09 04:40:14 C 07 31 10.93 +23 10 09.9 z 719
1999-03-09 04:44:16 C 07 31 09.60 +23 10 17.5 z 719
1999-03-09 20:52:49 C 07 25 54.32 +23 42 25.5 z 151
1999-03-09 20:55:53 C 07 25 53.24 +23 42 31.4 z 151
1999-03-09 20:58:49 C 07 25 52.22 +23 42 36.4 z 151
1999-03-09 21:01:09 C 07 25 51.64 +23 42 47.6 z 620
1999-03-09 21:04:59 C 07 25 50.30 +23 42 55.1 z 620
1999-03-09 21:09:09 C 07 25 48.89 +23 43 03.4 z 620
1999-03-09 22:04:59 C 07 25 29.74 +23 44 54.4 z 620
1999-03-09 22:07:59 C 07 25 28.75 +23 45 00.2 z 620
1999-03-10 19:23:44 C 07 18 17.84 +24 27 46.7 118
1999-03-10 19:26:36 C 07 18 16.85 +24 27 52.8 118
1999-03-11 04:53:17 C 07 14 57.91 +24 47 08.9 z 719
1999-03-11 04:55:25 C 07 14 57.23 +24 47 15.4 z 719
1999-03-11 18:36:07 C 07 10 05.86 +25 14 48.8 d 046
1999-03-11 18:36:19 C 07 10 06.03 +25 14 49.7 z 151
1999-03-11 18:37:15 C 07 10 05.45 +25 14 51.0 d 046
1999-03-11 18:38:30 C 07 10 05.01 +25 14 53.5 d 046
1999-03-11 18:39:57 C 07 10 04.46 +25 14 56.4 d 046
1999-03-11 18:42:28 C 07 10 03.79 +25 15 02.3 z 151
1999-03-11 18:46:28 C 07 10 02.30 +25 15 09.7 z 151
1999-03-11 18:50:31 C 07 10 00.70 +25 15 19.3 z 151
1999-03-11 18:53:09 C 07 09 59.82 +25 15 24.4 z 151
1999-03-11 19:42:54 C 07 09 40.85 +25 17 04.0 118
1999-03-11 19:50:39 C 07 09 37.96 +25 17 19.6 118
1999-03-12 19:05:23 C 07 01 01.42 +26 04 27.8 z 151
1999-03-12 19:10:58 C 07 00 59.32 +26 04 39.0 z 151
1999-03-12 19:14:45 C 07 00 57.79 +26 04 46.3 z 151
1999-03-12 19:17:04 C 07 00 56.85 +26 04 51.5 z 151
1999-03-12 19:19:03 C 07 00 56.09 +26 04 55.3 z 151
1999-03-13 18:25:05 C 06 51 58.75 +26 51 27.1 d 046
1999-03-13 18:27:02 C 06 51 57.93 +26 51 31.1 d 046
1999-03-13 18:28:03 C 06 51 57.54 +26 51 33.0 d 046
1999-03-13 18:29:01 C 06 51 57.12 +26 51 35.1 d 046
1999-03-13 20:06:37 C 06 51 17.57 +26 54 50.9 z 151
1999-03-13 20:08:39 C 06 51 16.59 +26 54 54.1 z 151
1999-03-13 21:04:29 C 06 50 53.69 +26 56 46.9 104
1999-03-13 21:06:09 C 06 50 53.05 +26 56 49.5 104
1999-03-13 21:08:09 C 06 50 52.23 +26 56 53.7 104
1999-03-13 21:09:50 C 06 50 51.56 +26 56 57.2 104
1999-03-15 02:43:54 C 06 38 45.36 +27 55 31.7 i 726
1999-03-15 02:47:54 C 06 38 43.58 +27 55 37.7 i 726
1999-03-15 02:51:54 C 06 38 41.95 +27 55 46.3 i 726
1999-03-15 02:55:53 C 06 38 40.16 +27 55 55.0 i 726
1999-03-15 02:59:53 C 06 38 38.48 +27 56 02.2 i 726
1999-03-15 03:03:54 C 06 38 36.65 +27 56 08.3 i 726
1999-03-15 20:20:11 C 06 31 12.67 +28 29 33.5 118
1999-03-15 20:22:31 C 06 31 11.65 +28 29 37.7 118
1999-03-15 20:23:16 C 06 31 11.30 +28 29 39.2 118
1999-03-16 12:00:17 C 06 24 18.05 +28 59 26.2 z 402
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)