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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 ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09155997051546473 5.9511e-08  
a 3.163917646576825 3.2437e-08 au
q 2.874229440142892 2.0356e-07 au
i 14.62773736787293 4.9609e-06 deg
node 275.2298930959559 2.2624e-05 deg
peri 42.77246444863228 3.6236e-05 deg
M 40.88600348807722 2.8518e-05 deg
tp 2459163.042224210221
(2020-Nov-09.54222421)
0.00016249 TDB
period 2055.588517200728
5.63
3.1611e-05
8.655e-08
d
yr
n .1751323268191063 2.6932e-09 deg/d
Q 3.453605853010758 3.5407e-08 au
  Orbit Determination Parameters
   # obs. used (total)      793  
   data-arc span      8386 days (22.96 yr)  
   first obs. used      1998-08-24  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51305  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:01:40  

Additional Information
 Earth MOID = 1.87703 au 
 Jupiter MOID = 1.79506 au 
 T_jup = 3.147 
[ 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 13.99   n/a E2021B10  
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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