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100938 (1998 MC44)
Classification: Main-belt Asteroid          SPK-ID: 2100938
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2969796441107078 4.4064e-08  
a 2.777716472985025 1.353e-08 au
q 1.952791223397482 1.2256e-07 au
i 7.548224431327471 4.6363e-06 deg
node 276.788694811593 4.2968e-05 deg
peri 57.96002601752198 4.3751e-05 deg
M 235.1271895437876 9.3725e-06 deg
tp 2459587.037365212167
(2022-Jan-07.53736521)
4.6775e-05 TDB
period 1690.948179230919
4.63
1.2354e-05
3.382e-08
d
yr
n .2128983042896891 1.5555e-09 deg/d
Q 3.602641722572568 1.7548e-08 au
  Orbit Determination Parameters
   # obs. used (total)      553  
   data-arc span      7986 days (21.86 yr)  
   first obs. used      1998-06-16  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50881  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:57:30  

Additional Information
 Earth MOID = .955046 au 
 Jupiter MOID = 1.85419 au 
 T_jup = 3.257 
[ 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 15.2   n/a MPO333622  

100938 (1998 MC44)          Discovered 1998-Jun-26 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 MC44 = 2003 QN51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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