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
1999-03-16 12:02:06 C 06 24 17.11 +28 59 30.3 z 402
1999-03-16 12:03:55 C 06 24 16.32 +28 59 33.2 z 402
1999-03-16 13:19:44 C 06 23 41.63 +29 01 52.6 360
1999-03-16 13:21:59 C 06 23 40.61 +29 01 56.6 360
1999-03-16 13:24:44 C 06 23 39.36 +29 02 01.4 360
1999-03-17 17:50:45 C 06 10 38.41 +29 53 38.0 118
1999-03-17 17:52:30 C 06 10 37.58 +29 53 40.9 118
1999-03-17 17:56:04 C 06 10 35.90 +29 53 47.9 118
1999-03-17 23:12:10 C 06 08 05.12 +30 04 02.0 z 860
1999-03-17 23:22:25 C 06 08 00.09 +30 04 19.9 z 860
1999-03-17 23:29:22 C 06 07 56.79 +30 04 31.8 z 860
1999-03-18 19:14:25 C 05 58 26.15 +30 37 01.8 z 587
1999-03-18 19:18:48 C 05 58 23.93 +30 37 08.5 z 587
1999-03-18 20:12:59 C 05 57 56.67 +30 38 31.8 c 540
1999-03-18 20:15:06 C 05 57 55.55 +30 38 35.4 c 540
1999-03-18 20:17:09 C 05 57 54.54 +30 38 38.5 c 540
1999-03-19 18:54:57 C 05 46 37.74 +31 14 27.9 d 046
1999-03-19 18:56:57 C 05 46 36.72 +31 14 31.2 d 046
1999-03-19 18:57:49 C 05 46 36.25 +31 14 31.6 d 046
1999-03-19 18:58:48 C 05 46 35.72 +31 14 33.5 d 046
1999-03-22 19:56:15 C 05 07 47.48 +32 46 22.7 118
1999-03-22 19:57:53 C 05 07 46.52 +32 46 24.2 118
1999-03-26 18:33:54 C 04 13 48.12 +33 35 14.6 d 046
1999-03-26 18:35:15 C 04 13 47.36 +33 35 14.5 d 046
1999-03-26 18:36:31 C 04 13 46.54 +33 35 14.7 d 046
1999-03-26 18:37:48 C 04 13 45.82 +33 35 14.8 d 046
1999-03-26 18:39:19 C 04 13 44.92 +33 35 14.8 d 046
1999-07-16 12:30:42 C 02 22 01.37 +13 17 35.5 568
1999-07-16 12:37:09 C 02 22 01.72 +13 17 35.8 568
1999-08-10 10:43:09 C 02 43 59.82 +12 43 00.3 658
1999-08-10 11:28:14 C 02 44 00.45 +12 42 53.0 658
1999-09-13 10:45:29 C 02 30 05.03 +08 17 56.4 848
1999-09-13 10:52:38 C 02 30 04.66 +08 17 52.0 848
1999-09-13 11:02:50 C 02 30 04.16 +08 17 47.4 848
1999-09-14 19:03:23 C 02 28 22.04 +08 02 19.0 413
1999-09-14 19:06:27 C 02 28 21.87 +08 02 17.7 413
1999-09-14 19:10:44 C 02 28 21.63 +08 02 15.6 413
1999-10-15 07:27:12 C 01 36 57.22 +01 40 18.2 z 711
1999-10-16 07:24:53 C 01 35 13.88 +01 29 33.6 z 711
1999-10-16 10:02:59 C 01 35 02.47 +01 28 21.2 c 658
1999-10-16 10:09:08 C 01 35 02.06 +01 28 19.2 c 658
1999-10-16 10:15:30 C 01 35 01.59 +01 28 14.6 c 658
1999-10-18 07:42:42 C 01 31 49.78 +01 08 39.7 c 658
1999-10-18 07:47:24 C 01 31 49.41 +01 08 36.5 c 658
1999-10-18 07:55:11 C 01 31 48.89 +01 08 33.2 c 658
2000-12-05 09:45:11 C 06 25 02.36 +15 10 09.9 c 693
2000-12-05 09:47:38 C 06 25 02.24 +15 10 09.8 c 693
2000-12-05 09:49:38 C 06 25 02.14 +15 10 09.6 c 693
2002-11-11 05:51:13 C 04 58 45.17 +14 26 41.9 d 291
2002-11-11 06:01:41 C 04 58 44.69 +14 26 39.9 d 291
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)