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301886 (1998 QY4)
Classification: Main-belt Asteroid          SPK-ID: 2301886
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3078967825562218 4.8422e-07  
a 2.617208367157297 2.2455e-08 au
q 1.811378331630342 1.263e-06 au
i 15.47792398449945 2.2224e-05 deg
node 315.691927670234 4.0197e-05 deg
peri 355.3135568945308 4.7502e-05 deg
M 48.8722988309444 2.9027e-05 deg
tp 2457190.549871962550
(2015-Jun-17.04987196)
0.00012386 JED
period 1546.521197108612
4.23
1.9904e-05
5.449e-08
d
yr
n .2327805145335601 2.9959e-09 deg/d
Q 3.423038402684251 2.9369e-08 au
  Orbit Determination Parameters
   # obs. used (total)      159  
   data-arc span      6294 days (17.23 yr)  
   first obs. used      1998-08-17  
   last obs. used      2015-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60847  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 23:41:46  

Additional Information
 Earth MOID = .795734 au 
 Jupiter MOID = 1.87371 au 
 T_jup = 3.289 
[ 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 16.9 mag n/a MPO348841  

301886 (1998 QY4)          Discovered 1998-Aug-22 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 1998 QY4 = 2010 ML58 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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