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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1209179086990484 4.1856e-08  
a 2.535100480194157 9.482e-09 au
q 2.228561431787127 1.0688e-07 au
i 2.137649133611358 4.2913e-06 deg
node 142.8779086943889 9.3262e-05 deg
peri 319.1881647767505 9.424e-05 deg
M 29.6032772760112 1.405e-05 deg
tp 2458879.264869202655
(2020-Jan-30.76486920)
5.735e-05 TDB
period 1474.318085802325
4.04
8.2715e-06
2.265e-08
d
yr
n .2441806849327822 1.37e-09 deg/d
Q 2.841639528601188 1.0628e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1669  
   data-arc span      10762 days (29.46 yr)  
   first obs. used      1990-08-16  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52567  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:06:02  

Additional Information
 Earth MOID = 1.24596 au 
 Jupiter MOID = 2.28233 au 
 T_jup = 3.437 
[ 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 14.0   n/a MPO416869  
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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