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
2025-11-23 03:50:12 C 01 14 54.56 +00 01 59.0 W W84
2025-11-26 00:53:18 C 01 13 30.31 +00 00 53.9 W W84
2025-11-26 01:20:09 C 01 13 29.77 +00 00 53.8 W W84
2025-11-26 01:38:03 C 01 13 29.43 +00 00 53.8 W W84
2025-11-26 02:03:14 C 01 13 28.93 +00 00 53.7 W W84
2025-11-26 02:41:18 C 01 13 28.19 +00 00 53.7 W W84
2025-11-26 03:21:19 C 01 13 27.41 +00 00 53.6 W W84
2025-11-26 06:18:45 C 01 13 24.465 +00 00 48.86 X F51
2025-11-26 06:36:13 C 01 13 24.121 +00 00 48.63 X F51
2025-11-26 06:53:40 C 01 13 23.781 +00 00 48.85 X F51
2025-11-26 15:21:45 C 01 13 14.756 +00 00 48.24 W O18
2025-11-26 17:10:02 C 01 13 12.752 +00 00 48.84 W O18
2025-11-27 15:10:37 C 01 12 51.094 +00 01 00.56 W O18
2025-11-27 17:01:50 C 01 12 49.216 +00 01 02.34 W O18
2025-12-15 14:43:01 C 01 11 14.224 +00 37 41.74 W O18
2025-12-15 15:55:41 C 01 11 14.682 +00 37 52.44 W O18
2025-12-23 15:10:37 C 01 13 25.856 +01 10 14.08 W O18
2025-12-23 15:12:24 C 01 13 25.890 +01 10 14.37 W O18
2025-12-24 14:24:20 C 01 13 47.976 +01 14 41.24 W O18
2025-12-24 15:33:47 C 01 13 49.036 +01 14 55.03 W O18
2025-12-24 15:35:34 C 01 13 49.081 +01 14 55.01 W O18
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)