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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04060943873715622 3.1877e-08  
a 2.231158639445368 8.5495e-09 au
q 2.140552539363934 7.352e-08 au
i 3.938554349017607 4.8622e-06 deg
node 38.10226617262953 4.9266e-05 deg
peri 70.66480536748543 7.9802e-05 deg
M 314.6816743339332 6.2624e-05 deg
tp 2458753.737641077379
(2019-Sep-27.23764108)
0.00021187 TDB
period 1217.290135437704
3.33
6.9967e-06
1.916e-08
d
yr
n .2957388625108294 1.6998e-09 deg/d
Q 2.321764739526801 8.8967e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1157  
   data-arc span      7773 days (21.28 yr)  
   first obs. used      1998-08-26  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53995  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 05:06:00  

Additional Information
 Earth MOID = 1.16134 au 
 Jupiter MOID = 2.70305 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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