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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3078336945062431 5.2891e-07  
a 2.61702749802428 2.2764e-08 AU
q 1.811418254683036 1.3805e-06 AU
i 15.47833868996686 2.7751e-05 deg
node 315.6935787356741 4.1066e-05 deg
peri 355.346889464367 4.8232e-05 deg
M 315.7379190422606 2.9991e-05 deg
tp 2457190.625418584799
(2015-Jun-17.12541858)
0.00012953 JED
period 1546.360885198274
4.23
2.0176e-05
5.524e-08
d
yr
n .2328046469914692 3.0375e-09 deg/d
Q 3.422636741365524 2.9771e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      6215 days (17.02 yr)  
   first obs. used      1998-08-17  
   last obs. used      2015-08-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61458  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 20:59:02  

Additional Information
 Earth MOID = .79865 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
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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