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52817 (1998 QF99)
Classification: Main-belt Asteroid          SPK-ID: 2052817
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04046403210710836 2.839e-08  
a 2.230793015330538 7.5485e-09 au
q 2.14052613513389 6.3961e-08 au
i 3.938477998268261 4.3677e-06 deg
node 38.09393454344895 4.8865e-05 deg
peri 70.40148709001811 7.7103e-05 deg
M 73.24736923093087 5.8502e-05 deg
tp 2458752.885044789296
(2019-Sep-26.38504479)
0.00019782 TDB
period 1216.99092829959
3.33
6.1771e-06
1.691e-08
d
yr
n .2958115723204288 1.5014e-09 deg/d
Q 2.321059895527187 7.854e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1362  
   data-arc span      7916 days (21.67 yr)  
   first obs. used      1998-08-26  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51251  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 10:27:39  

Additional Information
 Earth MOID = 1.1611 au 
 Jupiter MOID = 2.70244 au 
 T_jup = 3.638 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO452888  
diameter diameter 2.151 km 0.338 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.318   0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52817 (1998 QF99)          Discovered 1998-Aug-26 by Elst, E. W. at La Silla
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QF99 = 2000 EK78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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