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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04037881443523551 2.8e-08  
a 2.230715814392 7.4036e-09 au
q 2.14064215446492 6.2855e-08 au
i 3.938514017223806 4.3388e-06 deg
node 38.09307177805891 4.8567e-05 deg
peri 70.31985284317938 7.6921e-05 deg
M 132.5043040257583 5.8436e-05 deg
tp 2458752.588430173559
(2019-Sep-26.08843017)
0.00019763 TDB
period 1216.927754332966
3.33
6.0584e-06
1.659e-08
d
yr
n .2958269286884057 1.4728e-09 deg/d
Q 2.32078947431908 7.7026e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1395  
   data-arc span      7943 days (21.75 yr)  
   first obs. used      1998-08-26  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:48:19  

Additional Information
 Earth MOID = 1.16107 au 
 Jupiter MOID = 2.70178 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 15.51   n/a E2021B10  
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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