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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04430672166563109 5.9779e-08  
a 2.323753565856629 1.7936e-08 AU
q 2.220795663394701 1.4189e-07 AU
i 4.866751298837243 7.307e-06 deg
node 338.0148720149218 7.7743e-05 deg
peri 254.1059964874232 0.00012069 deg
M 352.7736452857541 9.3875e-05 deg
tp 2456826.471695686214
(2014-Jun-17.97169569)
0.00033742 JED
period 1293.848809913089
3.54
1.498e-05
4.101e-08
d
yr
n .2782396190666064 3.2214e-09 deg/d
Q 2.426711468318556 1.8731e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      764  
   data-arc span      8558 days (23.43 yr)  
   first obs. used      1990-08-16  
   last obs. used      2014-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52689  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:22:47  

Additional Information
 Earth MOID = 1.2161 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 14.3 mag n/a MPO256975  

15253 (1990 QA4)          Discovered 1990-Aug-23 by Holt, H. E. at Palomar (675)
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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