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
2016-11-04 08:01:06 C 04 20 51.42 +13 07 20.3 u H21
2016-11-05 07:43:07 C 04 19 39.57 +13 02 46.4 u H21
2016-11-05 08:02:26 C 04 19 38.57 +13 02 42.9 u H21
2016-11-05 08:27:01 C 04 19 37.25 +13 02 38.2 u H21
2016-11-10 06:26:39 C 04 13 24.49 +12 39 54.8 u H21
2016-11-10 06:45:23 C 04 13 23.44 +12 39 50.9 u H21
2016-11-10 07:10:15 C 04 13 22.08 +12 39 46.5 u H21
2017-12-20 11:47:26 C 11 52 06.60 -02 04 06.7 U G96
2017-12-20 11:54:52 C 11 52 07.54 -02 04 12.3 U G96
2017-12-20 12:02:17 C 11 52 08.49 -02 04 17.6 U G96
2017-12-20 12:09:42 C 11 52 09.39 -02 04 23.1 U G96
2018-01-20 11:00:48 C 14 05 09.27 -12 58 42.1 U 703
2018-01-20 11:10:47 C 14 05 11.66 -12 58 52.1 U 703
2018-01-20 11:18:35 C 14 05 13.56 -12 58 59.4 U 703
2018-01-20 11:26:21 C 14 05 15.57 -12 59 05.9 U 703
2018-01-24 11:39:18 C 14 30 34.86 -14 32 22.9 U 703
2018-01-24 11:46:21 C 14 30 36.83 -14 32 27.9 U 703
2018-01-24 11:53:26 C 14 30 38.66 -14 32 33.9 U 703
2018-01-24 12:00:29 C 14 30 40.62 -14 32 40.6 U 703
2018-01-27 11:47:17 C 14 51 07.93 -15 39 11.7 U G96
2018-01-27 12:02:58 C 14 51 12.48 -15 39 25.5 U G96
2018-01-27 12:09:50 C 14 51 14.48 -15 39 32.1 U G96
2018-01-27 12:16:40 C 14 51 16.43 -15 39 38.0 U G96
2018-09-10 08:48:01 C 03 20 56.29 +12 10 08.8 V G96
2018-09-10 08:55:26 C 03 20 56.20 +12 10 06.4 V G96
2018-09-10 09:02:53 C 03 20 56.02 +12 10 05.7 V G96
2018-09-10 09:10:19 C 03 20 55.89 +12 10 03.4 V G96
2019-12-20 07:38:54 C 06 58 46.77 +14 39 39.3 V G96
2019-12-20 07:46:27 C 06 58 46.29 +14 39 39.8 V G96
2019-12-20 07:54:01 C 06 58 45.83 +14 39 39.8 V G96
2019-12-20 08:01:33 C 06 58 45.39 +14 39 40.3 V G96
2020-01-25 06:10:30 C 05 59 42.56 +16 02 28.9 V G96
2020-01-25 06:18:43 C 05 59 42.06 +16 02 29.9 V G96
2020-01-25 06:35:10 C 05 59 41.06 +16 02 32.5 V G96
2020-11-09 11:03:16 C 21 25 46.13 -18 14 50.7 q D29
2020-11-09 11:23:39 C 21 25 48.85 -18 14 40.8 q D29
2021-11-29 08:31:00 C 05 11 13.82 +14 31 05.5 V V00
2021-11-29 08:37:59 C 05 11 13.41 +14 31 04.8 V V00
2021-11-29 08:44:59 C 05 11 13.02 +14 31 04.0 V V00
2021-11-29 08:51:59 C 05 11 12.62 +14 31 03.3 V V00
2023-11-12 08:25:53 C 03 46 47.766 +11 16 12.72 V V00
2023-11-12 08:33:50 C 03 46 47.309 +11 16 10.92 V V00
2023-11-12 08:41:45 C 03 46 46.848 +11 16 09.41 V V00
2023-11-12 08:49:42 C 03 46 46.376 +11 16 07.28 V V00
2023-11-20 08:08:45 C 03 35 46.056 +10 36 47.48 X F52
2023-11-20 08:24:33 C 03 35 45.128 +10 36 44.33 X F52
2023-11-20 08:40:23 C 03 35 44.219 +10 36 41.37 X F52
2024-11-27 14:36:39 C 09 51 19.834 +08 02 30.78 X F51
2024-11-27 14:55:07 C 09 51 20.865 +08 02 24.44 X F51
2024-11-27 15:13:39 C 09 51 21.907 +08 02 18.23 X F51
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)