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100770 (1998 FG31)
Classification: Main-belt Asteroid          SPK-ID: 2100770
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1641217973143131 4.5126e-08  
a 2.291655539664165 7.0915e-09 au
q 1.91554491366918 1.0245e-07 au
i 5.754365045515925 5.0361e-06 deg
node 21.11504389993859 2.9294e-05 deg
peri 207.9282783321559 3.1412e-05 deg
M 101.4751350625839 1.0237e-05 deg
tp 2458643.326217701363
(2019-Jun-08.82621770)
3.6092e-05 TDB
period 1267.13368302695
3.47
5.8817e-06
1.61e-08
d
yr
n .2841057773320539 1.3188e-09 deg/d
Q 2.66776616565915 8.2554e-09 au
  Orbit Determination Parameters
   # obs. used (total)      973  
   data-arc span      8275 days (22.66 yr)  
   first obs. used      1998-02-27  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52895  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:04:19  

Additional Information
 Earth MOID = .908061 au 
 Jupiter MOID = 2.32439 au 
 T_jup = 3.573 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457268.5 (2015-Sep-03.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1636408228999098 4.5195e-08  
q 1.917090564980092 1.0257e-07 au
tp 2457375.449506246054
(2015-Dec-18.94950625)
3.7067e-05 TDB
node 21.1558122534563 2.9281e-05 deg
peri 207.8591725468847 3.1407e-05 deg
i 5.755348443797314 5.0364e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      973  
   data-arc span      8275 days (22.66 yr)  
   first obs. used      1998-02-27  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52895  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:04:19  

Additional Information
 Jupiter MOID = 2.32439 au 
 T_jup = 3.573 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.042625401370756E-15 -4.628189159607925E-15 -7.211411203461422E-13 1.235521878123457E-14 -1.85251449763713E-13 -7.007384380914985E-17
q -4.628189159607925E-15 1.052026105322222E-14 1.605191716976209E-12 -2.817520125631251E-14 4.11050235983623E-13 2.268505254626449E-16
tp -7.211411203461422E-13 1.605191716976209E-12 1.373942713890274E-9 -7.762871189640777E-12 4.242420121463357E-10 1.26219129583171E-12
node 1.235521878123457E-14 -2.817520125631251E-14 -7.762871189640777E-12 8.574061383805492E-10 -8.548108293589458E-10 7.762919121051925E-12
peri -1.85251449763713E-13 4.11050235983623E-13 4.242420121463357E-10 -8.548108293589458E-10 9.864177975564176E-10 -7.340851960681695E-12
i -7.007384380914985E-17 2.268505254626449E-16 1.26219129583171E-12 7.762919121051925E-12 -7.340851960681695E-12 2.53655335185232E-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 16.2   n/a MPO474882  

100770 (1998 FG31)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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