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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 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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456934.5 (2014-Oct-04.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03997397220226079 2.8425e-08  
q 2.142041129150869 6.4016e-08 au
tp 2457536.713067871605
(2016-May-28.21306787)
0.0002007 TDB
node 38.11386052071181 4.887e-05 deg
peri 70.72216076738522 7.7654e-05 deg
i 3.938620848856299 4.3669e-06 deg
  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
 Jupiter MOID = 2.70244 au 
 T_jup = 3.638 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.079662191593849E-16 -1.80798357749453E-15 3.553644476793761E-13 -1.037671115894704E-15 1.215303471806375E-13 -9.393766024516516E-17
q -1.80798357749453E-15 4.098030963081656E-15 -9.028729081192173E-13 2.324278220941059E-15 -3.114678721402603E-13 2.787837714812204E-16
tp 3.553644476793761E-13 -9.028729081192173E-13 4.027996699940258E-8 -2.820264406666094E-11 1.211764153725697E-8 -1.441550896038357E-13
node -1.037671115894704E-15 2.324278220941059E-15 -2.820264406666094E-11 2.388303564361058E-9 -2.390787942918983E-9 -5.329775666571011E-11
peri 1.215303471806375E-13 -3.114678721402603E-13 1.211764153725697E-8 -2.390787942918983E-9 6.030072603865494E-9 5.312062215339929E-11
i -9.393766024516516E-17 2.787837714812204E-16 -1.441550896038357E-13 -5.329775666571011E-11 5.312062215339929E-11 1.907022992312084E-11

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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