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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456341.5 (2013-Feb-18.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1196684153078582 4.1933e-08  
q 2.231970051951154 1.0689e-07 au
tp 2455930.415977927517
(2012-Jan-03.91597793)
5.5434e-05 TDB
node 142.9086543201334 9.2732e-05 deg
peri 319.2506959001761 9.3722e-05 deg
i 2.137143082597222 4.2851e-06 deg
  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
 Jupiter MOID = 2.28233 au 
 T_jup = 3.437 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.758378183813781E-15 -4.46896728954733E-15 3.388347124507884E-13 -1.84532992122028E-14 1.325830760327283E-13 -2.179743703055691E-16
q -4.46896728954733E-15 1.142530191475926E-14 -8.782641657372349E-13 4.719574196127882E-14 -3.369023458124184E-13 5.938120102077526E-16
tp 3.388347124507884E-13 -8.782641657372349E-13 3.072897933737428E-9 -1.610261143846519E-12 7.610375553411169E-10 -7.06574514751852E-13
node -1.84532992122028E-14 4.719574196127882E-14 -1.610261143846519E-12 8.59913339809933E-9 -8.593687139485667E-9 -9.506897385367303E-11
peri 1.325830760327283E-13 -3.369023458124184E-13 7.610375553411169E-10 -8.593687139485667E-9 8.783892227839055E-9 9.48372161735375E-11
i -2.179743703055691E-16 5.938120102077526E-16 -7.06574514751852E-13 -9.506897385367303E-11 9.48372161735375E-11 1.836182148615029E-11

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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