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JPL Small-Body Database Browser
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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1209179087207759 4.1845e-08  
a 2.535100480771466 9.3509e-09 au
q 2.228561432239546 1.0683e-07 au
i 2.137649023213239 4.2833e-06 deg
node 142.8779055193725 9.2782e-05 deg
peri 319.188168478964 9.3752e-05 deg
M 29.60327642194559 1.3831e-05 deg
tp 2458879.264872658921
(2020-Jan-30.76487266)
5.647e-05 TDB
period 1474.318086305936
4.04
8.1572e-06
2.233e-08
d
yr
n .2441806848493727 1.351e-09 deg/d
Q 2.841639529303385 1.0482e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1708  
   data-arc span      10842 days (29.68 yr)  
   first obs. used      1990-08-16  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52258  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:05:02  

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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