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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 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3077604172416577 1.3897e-06  
a 2.616750456990365 2.1724e-07 AU
q 1.811418244529712 3.4982e-06 AU
i 15.47841479927156 3.7198e-05 deg
node 315.6949757315604 6.8642e-05 deg
peri 355.3591961483401 0.00011554 deg
M 269.151015528744 0.00027105 deg
tp 2457190.675024366250
(2015-Jun-17.17502437)
0.0012123 JED
period 1546.115342833485
4.23
0.00019253
5.271e-07
d
yr
n .2328416192677105 2.8995e-08 deg/d
Q 3.422082669451019 2.841e-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      1  
   fit RMS      .56572  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-12 12:34:46  

Additional Information
 Earth MOID = .796736 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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