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15253 (1990 QA4)
Classification: Main-belt Asteroid          SPK-ID: 2015253
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04478555178138141 5.0846e-08  
a 2.323588191767608 1.3016e-08 au
q 2.219525012486594 1.1498e-07 au
i 4.866677069285493 5.557e-06 deg
node 338.0068574027833 5.6156e-05 deg
peri 254.1268695620062 8.366e-05 deg
M 215.3061002613046 6.3725e-05 deg
tp 2458120.477903929127
(2018-Jan-01.97790393)
0.00022947 JED
period 1293.710693764827
3.54
1.087e-05
2.976e-08
d
yr
n .2782693238411474 2.3382e-09 deg/d
Q 2.427651371048623 1.3599e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1019  
   data-arc span      9270 days (25.38 yr)  
   first obs. used      1990-08-16  
   last obs. used      2016-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5195  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 19:04:18  

Additional Information
 Earth MOID = 1.21452 au 
 Jupiter MOID = 2.56137 au 
 T_jup = 3.570 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO347645  

15253 (1990 QA4)          Discovered 1990-Aug-23 by Holt, H. E. at Palomar
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 QA4 = 1991 YM2 = 1998 XQ46 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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