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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2159812013441595 4.1783e-08  
a 2.184892153676259 9.2493e-09 au
q 1.712996521517833 9.2357e-08 au
i 3.716853317545538 3.3942e-06 deg
node 42.85554548518695 8.3897e-05 deg
peri 310.3065322393794 8.4419e-05 deg
M 136.29566011291 1.1141e-05 deg
tp 2458153.895637456533
(2018-Feb-04.39563746)
3.5075e-05 TDB
period 1179.62355061384
3.23
7.4906e-06
2.051e-08
d
yr
n .3051821064547813 1.9379e-09 deg/d
Q 2.656787785834686 1.1247e-08 au
  Orbit Determination Parameters
   # obs. used (total)      631  
   data-arc span      9102 days (24.92 yr)  
   first obs. used      1994-05-01  
   last obs. used      2019-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55145  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:24:12  

Additional Information
 Earth MOID = .710071 au 
 Jupiter MOID = 2.77882 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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