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
2025-01-22 22:28:03 C 11 01 26.709 +01 00 06.74 O18
2025-01-24 07:51:38 C 11 03 09.696 +00 52 35.98 V W68
2025-01-24 07:58:10 C 11 03 10.032 +00 52 34.46 V W68
2025-01-24 08:49:24 C 11 03 12.466 +00 52 22.51 V W68
2025-01-24 09:05:20 C 11 03 13.195 +00 52 19.16 V W68
2025-01-25 13:34:43 C 11 04 42.298 +00 45 35.06 X F52
2025-01-25 13:50:41 C 11 04 43.057 +00 45 31.48 X F52
2025-01-25 14:06:34 C 11 04 43.815 +00 45 27.89 X F52
2025-01-25 14:22:24 C 11 04 44.570 +00 45 24.34 X F52
2025-01-25 22:29:04 C 11 05 11.117 +00 43 50.27 V M22
2025-01-25 22:31:40 C 11 05 11.239 +00 43 50.38 V M22
2025-01-25 22:38:18 C 11 05 11.578 +00 43 49.22 V M22
2025-01-25 22:46:08 C 11 05 11.950 +00 43 48.00 V M22
2025-01-29 20:48:18 C 11 10 16.602 +00 23 40.55 O18
2025-01-29 22:15:22 C 11 10 22.402 +00 23 46.61 V M22
2025-01-29 22:18:42 C 11 10 22.579 +00 23 46.00 V M22
2025-01-29 22:18:54 C 11 10 21.288 +00 23 22.62 O18
2025-01-29 22:20:40 C 11 10 21.369 +00 23 22.32 O18
2025-01-29 22:23:15 C 11 10 22.817 +00 23 45.17 V M22
2025-01-29 22:51:19 C 11 10 24.266 +00 23 39.80 V M22
2025-02-01 06:13:03 C 11 13 35.014 +00 13 10.67 V W68
2025-02-01 06:15:38 C 11 13 35.155 +00 13 10.09 V W68
2025-02-01 06:24:51 C 11 13 35.630 +00 13 08.83 V W68
2025-02-01 07:06:49 C 11 13 37.894 +00 13 00.91 V W68
2025-02-02 12:14:24 C 11 15 23.170 +00 07 33.31 V T05
2025-02-02 12:18:58 C 11 15 23.453 +00 07 32.59 V T05
2025-02-02 12:26:49 C 11 15 23.870 +00 07 31.15 V T05
2025-02-02 12:53:55 C 11 15 25.358 +00 07 26.40 V T05
2025-02-03 01:26:32 C 11 16 11.669 +00 05 38.51 V M22
2025-02-03 01:32:27 C 11 16 12.002 +00 05 37.21 V M22
2025-02-03 02:19:26 C 11 16 14.676 +00 05 29.47 V M22
2025-02-03 02:49:05 C 11 16 16.346 +00 05 24.58 V M22
2025-02-03 22:08:32 C 11 17 29.453 +00 01 46.51 O18
2025-02-03 22:10:04 C 11 17 29.546 +00 01 46.23 O18
2025-02-03 23:20:42 C 11 17 33.767 +00 01 34.83 O18
2025-02-03 23:22:13 C 11 17 33.864 +00 01 34.54 O18
2025-02-04 22:18:12 C 11 19 03.603 -00 02 03.07 O18
2025-02-04 22:19:45 C 11 19 03.706 -00 02 03.35 O18
2025-02-06 08:06:17 C 11 21 22.655 -00 07 02.86 V G96
2025-02-06 08:13:45 C 11 21 23.134 -00 07 03.94 V G96
2025-02-06 08:21:15 C 11 21 23.623 -00 07 04.87 V G96
2025-02-06 08:28:46 C 11 21 24.088 -00 07 05.99 V G96
2025-02-06 11:21:05 C 11 21 36.276 -00 07 25.90 V T05
2025-02-06 11:25:39 C 11 21 36.566 -00 07 26.62 V T05
2025-02-06 11:36:32 C 11 21 37.262 -00 07 28.24 V T05
2025-02-06 11:52:28 C 11 21 38.266 -00 07 30.40 V T05
2025-02-06 12:38:59 C 11 21 41.212 -00 07 37.05 X F51
2025-02-06 12:59:09 C 11 21 42.492 -00 07 39.91 X F51
2025-02-06 13:19:17 C 11 21 43.768 -00 07 42.75 X F51
2025-02-08 11:46:25 C 11 25 09.252 -00 13 53.44 V T08
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)