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100021 (1990 QV7)
Classification: Main-belt Asteroid          SPK-ID: 2100021
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2030990983607806 4.0652e-08  
a 2.422960241873521 1.0433e-08 au
q 1.93085920138499 1.0011e-07 au
i .3905824140128075 4.2272e-06 deg
node 235.5513982172783 0.00068414 deg
peri 115.0816839068271 0.00068422 deg
M 311.842822041537 1.2179e-05 deg
tp 2459184.779229193974
(2020-Dec-01.27922919)
4.7236e-05 TDB
period 1377.583266341961
3.77
8.8976e-06
2.436e-08
d
yr
n .2613272161442156 1.6879e-09 deg/d
Q 2.915061282362052 1.2552e-08 au
  Orbit Determination Parameters
   # obs. used (total)      757  
   data-arc span      10948 days (29.97 yr)  
   first obs. used      1990-08-16  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51685  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:01:48  

Additional Information
 Earth MOID = .924996 au 
 Jupiter MOID = 2.51617 au 
 T_jup = 3.484 
[ 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 15.7   n/a MPO432529  
diameter diameter 2.134 km 0.170 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.223   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100021 (1990 QV7)          Discovered 1990-Aug-16 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1990 QV7 = 2000 GA8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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