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85730 (1998 SQ77)
Classification: Main-belt Asteroid          SPK-ID: 2085730
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2161426300827095 3.7137e-08  
a 2.184791415967562 8.6442e-09 au
q 1.712564853138206 8.3462e-08 au
i 3.716912317333052 3.3716e-06 deg
node 42.85192701039143 6.4191e-05 deg
peri 310.2610360815413 6.4753e-05 deg
M 258.4503515247099 1.1392e-05 deg
tp 2459333.227978678131
(2021-Apr-28.72797868)
3.8705e-05 TDB
period 1179.541969101682
3.23
7.0004e-06
1.917e-08
d
yr
n .3052032139849754 1.8113e-09 deg/d
Q 2.657017978796918 1.0513e-08 au
  Orbit Determination Parameters
   # obs. used (total)      684  
   data-arc span      9494 days (25.99 yr)  
   first obs. used      1994-05-01  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54848  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:39:50  

Additional Information
 Earth MOID = .710523 au 
 Jupiter MOID = 2.78209 au 
 T_jup = 3.644 
[ 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 16.1   n/a MPO257392  

85730 (1998 SQ77)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 SQ77 = 1994 JB2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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