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100125 (1993 QG7)
Classification: Main-belt Asteroid          SPK-ID: 2100125
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1054382771916819 3.8929e-08  
a 2.618085007827065 1.4206e-08 au
q 2.342038635060408 9.9073e-08 au
i 2.218572523992965 4.1727e-06 deg
node 105.9882197553423 0.00011185 deg
peri 206.1029627030336 0.00011406 deg
M 139.502245700464 2.4182e-05 deg
tp 2458400.912264735024
(2018-Oct-09.41226473)
0.00010256 TDB
period 1547.298279046081
4.24
1.2594e-05
3.448e-08
d
yr
n .232663607835163 1.8937e-09 deg/d
Q 2.894131380593722 1.5704e-08 au
  Orbit Determination Parameters
   # obs. used (total)      852  
   data-arc span      10426 days (28.54 yr)  
   first obs. used      1992-04-07  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51741  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:07:54  

Additional Information
 Earth MOID = 1.32801 au 
 Jupiter MOID = 2.32668 au 
 T_jup = 3.397 
[ 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 15.4   n/a MPO453455  
diameter diameter 2.775 km 0.570 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.174   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100125 (1993 QG7)          Discovered 1993-Aug-20 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1993 QG7 = 2002 UV21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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