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JPL Small-Body Database Browser
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108608 (2001 MC21)
Classification: Main-belt Asteroid          SPK-ID: 2108608
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1572075752883478 4.1626e-08  
a 2.315214138578653 8.782e-09 au
q 1.951244937579402 9.4268e-08 au
i 2.620822134931068 4.534e-06 deg
node 127.0335246120784 0.00013976 deg
peri 171.3303385700918 0.00014218 deg
M 128.4362631863688 2.7733e-05 deg
tp 2458541.439065509112
(2019-Feb-26.93906551)
9.8268e-05 TDB
period 1286.723331220829
3.52
7.3211e-06
2.004e-08
d
yr
n .2797804246375449 1.5919e-09 deg/d
Q 2.679183339577903 1.0163e-08 au
  Orbit Determination Parameters
   # obs. used (total)      513  
   data-arc span      10287 days (28.16 yr)  
   first obs. used      1991-11-08  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55399  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 15:42:14  

Additional Information
 Earth MOID = .935532 au 
 Jupiter MOID = 2.51634 au 
 T_jup = 3.564 
[ 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 16.3   n/a MPO502752  

108608 (2001 MC21)          Discovered 2001-Jun-26 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 MC21 = 2000 CW104 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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