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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0586344524694835 4.5354e-08  
a 1.936799898653511 6.0486e-09 au
q 1.823236697053011 8.7138e-08 au
i 19.85178009877257 5.5118e-06 deg
node 263.9039034315282 1.1295e-05 deg
peri 190.6011727035669 4.122e-05 deg
M 10.35365898581088 3.8166e-05 deg
tp 2459172.184977349908
(2020-Nov-18.68497735)
0.00010438 TDB
period 984.5222996046783
2.70
4.612e-06
1.263e-08
d
yr
n .3656595692596838 1.7129e-09 deg/d
Q 2.05036310025401 6.4033e-09 au
  Orbit Determination Parameters
   # obs. used (total)      852  
   data-arc span      8238 days (22.55 yr)  
   first obs. used      1998-08-25  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48275  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:35:36  

Additional Information
 Earth MOID = .840481 au 
 Jupiter MOID = 3.15475 au 
 T_jup = 3.832 
[ 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 16.02   n/a E2021B55  

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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