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91143 (1998 MC6)
Classification: Main-belt Asteroid          SPK-ID: 2091143
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03512732034404955 6.0549e-08  
a 2.897863103980338 1.9702e-08 au
q 2.796068938413619 1.7127e-07 au
i 2.973117279451376 4.6098e-06 deg
node 65.54172980323112 0.00012239 deg
peri 239.9326112926139 0.00015796 deg
M 185.2253696044253 0.00010231 deg
tp 2460271.264432632706
(2023-Nov-22.76443263)
0.00051323 TDB
period 1801.835855896326
4.93
1.8375e-05
5.031e-08
d
yr
n .1997962238468817 2.0375e-09 deg/d
Q 2.999657269547058 2.0394e-08 au
  Orbit Determination Parameters
   # obs. used (total)      558  
   data-arc span      10607 days (29.04 yr)  
   first obs. used      1992-02-25  
   last obs. used      2021-03-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58776  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:43:52  

Additional Information
 Earth MOID = 1.78183 au 
 Jupiter MOID = 2.07498 au 
 T_jup = 3.285 
[ 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 15.23   n/a MPCxxxxx  

91143 (1998 MC6)          Discovered 1998-Jun-19 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 MC6 = 1994 RT28 = 1998 NQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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