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129560 (1997 CW12)
Classification: Main-belt Asteroid          SPK-ID: 2129560
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07671133731191468 4.3136e-08  
a 2.594831714453183 2.0828e-08 au
q 2.39577870353811 1.1218e-07 au
i 4.981336274990401 6.1836e-06 deg
node 29.3947579935578 6.8359e-05 deg
peri 233.6075552889707 8.3344e-05 deg
M 96.22271353756069 4.8738e-05 deg
tp 2458592.427506102462
(2019-Apr-18.92750610)
0.00020552 TDB
period 1526.729941426653
4.18
1.8382e-05
5.033e-08
d
yr
n .23579808729211 2.839e-09 deg/d
Q 2.793884725368254 2.2426e-08 au
  Orbit Determination Parameters
   # obs. used (total)      258  
   data-arc span      7692 days (21.06 yr)  
   first obs. used      1997-02-03  
   last obs. used      2018-02-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6406  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Mar-06 00:38:49  

Additional Information
 Earth MOID = 1.3845 au 
 Jupiter MOID = 2.24901 au 
 T_jup = 3.408 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO436627  

129560 (1997 CW12)          Discovered 1997-Feb-03 by Spacewatch at Kitt Peak
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1997 CW12 = 1999 VV220 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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