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JPL Small-Body Database Browser
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91158 (1998 QG70)
Classification: Main-belt Asteroid          SPK-ID: 2091158
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09295609404284022 6.277e-08  
a 3.168558763308437 3.462e-08 au
q 2.874021916926073 2.1299e-07 au
i 14.63841793435016 5.0223e-06 deg
node 275.2727633964265 2.4663e-05 deg
peri 43.35677356922029 3.9257e-05 deg
M 331.0772324908545 3.2323e-05 deg
tp 2459166.011594075333
(2020-Nov-12.51159408)
0.00018553 TDB
period 2060.113156470213
5.64
3.3763e-05
9.244e-08
d
yr
n .174747682606339 2.8639e-09 deg/d
Q 3.463095609690802 3.7838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      656  
   data-arc span      7614 days (20.85 yr)  
   first obs. used      1998-08-24  
   last obs. used      2019-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52811  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:24:26  

Additional Information
 Earth MOID = 1.87798 au 
 Jupiter MOID = 1.79147 au 
 T_jup = 3.146 
[ 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 13.9   n/a MPO436409  
diameter diameter 9.140 km 0.957 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.058   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

91158 (1998 QG70)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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