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14865 (1990 QE7)
Classification: Main-belt Asteroid          SPK-ID: 2014865
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1208765450642195 3.9014e-08  
a 2.534671532984028 8.9994e-09 au
q 2.22828919520429 9.8819e-08 au
i 2.137779607366533 4.0388e-06 deg
node 142.878797794584 9.1275e-05 deg
peri 319.1065743548275 9.2217e-05 deg
M 78.5211427346002 1.3828e-05 deg
tp 2458879.011776835113
(2020-Jan-30.51177684)
5.6116e-05 TDB
period 1473.943912540136
4.04
7.8499e-06
2.149e-08
d
yr
n .2442426722870277 1.3008e-09 deg/d
Q 2.841053870763766 1.0087e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1800  
   data-arc span      11178 days (30.60 yr)  
   first obs. used      1990-08-16  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52046  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 01:54:16  

Additional Information
 Earth MOID = 1.24552 au 
 Jupiter MOID = 2.28277 au 
 T_jup = 3.438 
[ 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 14.06   n/a E2021B10  
diameter diameter 3.579 km 0.552 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.380   0.245 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14865 (1990 QE7)          Discovered 1990-Aug-20 by Elst, E. W. at La Silla
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 QE7 = 1994 PU21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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