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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3077600224108556 4.6539e-07  
a 2.616750417185063 9.9343e-08 AU
q 1.811419250148572 1.1829e-06 AU
i 15.47843458219644 3.0936e-05 deg
node 315.6950063227998 5.9735e-05 deg
peri 355.3591549325247 8.1153e-05 deg
M 269.151069548418 0.00011298 deg
tp 2457190.674783461602
(2015-Jun-17.17478346)
0.00050677 JED
period 1546.11530755485
4.23
8.8046e-05
2.411e-07
d
yr
n .2328416245805965 1.3259e-08 deg/d
Q 3.422081584221553 1.2992e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      71  
   data-arc span      5266 days (14.42 yr)  
   first obs. used      1998-08-17  
   last obs. used      2013-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .66315  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-10 16:36:32  

Additional Information
 Earth MOID = .796737 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 16.5 mag n/a MPO251861  

301886 (1998 QY4)          Discovered 1998-Aug-22 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
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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