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186761 (2004 CS99)
Classification: Main-belt Asteroid          SPK-ID: 2186761
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1503209990093297 3.1716e-08  
a 2.343773382855164 1.1479e-08 au
q 1.991455026492899 7.7065e-08 au
i 3.178106377643861 3.8228e-06 deg
node 75.63215520042925 9.132e-05 deg
peri 35.85181159076809 9.3962e-05 deg
M 284.5445412974925 2.5042e-05 deg
tp 2459475.200858370728
(2021-Sep-17.70085837)
9.2561e-05 TDB
period 1310.605100200336
3.59
9.6282e-06
2.636e-08
d
yr
n .2746822822106913 2.0179e-09 deg/d
Q 2.696091739217428 1.3204e-08 au
  Orbit Determination Parameters
   # obs. used (total)      551  
   data-arc span      9230 days (25.27 yr)  
   first obs. used      1995-09-30  
   last obs. used      2021-01-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54503  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:52:36  

Additional Information
 Earth MOID = 1.009 au 
 Jupiter MOID = 2.40691 au 
 T_jup = 3.545 
[ 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 16.58   n/a MPCxxxxx  

186761 (2004 CS99)          Discovered 2004-Feb-15 by CSS at Catalina
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2004 CS99 = 1999 XG257 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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