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5964 (1990 QN4)
Classification: Main-belt Asteroid          SPK-ID: 2005964
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3082077840405233 5.4963e-08  
a 3.055339516890008 1.8275e-08 AU
q 2.113660094897896 1.6456e-07 AU
i 3.39405688021044 5.8967e-06 deg
node 173.1059823078857 8.5108e-05 deg
peri 212.0121503774083 8.5591e-05 deg
M 161.6486810969789 9.6897e-06 deg
tp 2456124.594391186553
(2012-Jul-16.09439119)
4.782e-05 JED
period 1950.687237489215
5.34
1.7502e-05
4.792e-08
d
yr
n .1845503436334398 1.6558e-09 deg/d
Q 3.997018938882121 2.3908e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1278  
   data-arc span      36377 days (99.59 yr)  
   first obs. used      1915-10-14  
   last obs. used      2015-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54032  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:53:14  

Additional Information
 Earth MOID = 1.11835 AU 
 T_jup = 3.158 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7 mag n/a MPO259382  

5964 (1990 QN4)          Discovered 1990-Aug-23 by Holt, H. E. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1990 QN4 = 1970 AD = 1979 OB14 = 1982 DT1 = A915 TH 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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