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101185 (1998 SS12)
Classification: Inner Main-belt Asteroid          SPK-ID: 2101185
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05852187470540387 5.0865e-08  
a 1.936514663963651 7.3517e-09 au
q 1.823186195433993 9.9714e-08 au
i 19.85272945049533 6.0828e-06 deg
node 263.9029961191393 1.3813e-05 deg
peri 190.6812590315774 4.91e-05 deg
M 297.1361005097445 4.7942e-05 deg
tp 2459172.381220211187
(2020-Nov-18.88122021)
0.00013141 TDB
period 984.3048200600207
2.69
5.6051e-06
1.535e-08
d
yr
n .3657403607736555 2.0827e-09 deg/d
Q 2.049843132493309 7.7819e-09 au
  Orbit Determination Parameters
   # obs. used (total)      645  
   data-arc span      8096 days (22.17 yr)  
   first obs. used      1998-08-25  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51827  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:01:57  

Additional Information
 Earth MOID = .840764 au 
 Jupiter MOID = 3.1552 au 
 T_jup = 3.833 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO474886  

101185 (1998 SS12)          Discovered 1998-Sep-23 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 SS12 = 2001 VA81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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