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100752 (1998 EF20)
Classification: Main-belt Asteroid          SPK-ID: 2100752
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .09003549532594401 4.971e-08  
a 2.380177193045288 1.1782e-08 au
q 2.165876760505941 1.216e-07 au
i 6.47392029393362 5.5426e-06 deg
node 154.4187614275613 3.5514e-05 deg
peri 349.0153239913055 4.4199e-05 deg
M 32.9730594947367 2.4857e-05 deg
tp 2458877.651712593137
(2020-Jan-29.15171259)
9.277e-05 TDB
period 1341.258110231779
3.67
9.9589e-06
2.727e-08
d
yr
n .2684047143899762 1.9929e-09 deg/d
Q 2.594477625584636 1.2843e-08 au
  Orbit Determination Parameters
   # obs. used (total)      619  
   data-arc span      8099 days (22.17 yr)  
   first obs. used      1998-02-24  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55662  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:55:38  

Additional Information
 Earth MOID = 1.17836 au 
 Jupiter MOID = 2.40375 au 
 T_jup = 3.525 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457207.5 (2015-Jul-04.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09005178583766513 5.0003e-08  
q 2.165789972539721 1.2232e-07 au
tp 2457538.212410362297
(2016-May-29.71241036)
9.434e-05 TDB
node 154.4435592070077 3.5499e-05 deg
peri 349.5628914245264 4.4061e-05 deg
i 6.475036487780444 5.5441e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      619  
   data-arc span      8099 days (22.17 yr)  
   first obs. used      1998-02-24  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55662  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:55:38  

Additional Information
 Jupiter MOID = 2.40375 au 
 T_jup = 3.525 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.500326780280927E-15 -6.09437922761531E-15 1.929776156405267E-12 -1.184188262109008E-14 5.22750487279977E-13 -5.021174671221206E-15
q -6.09437922761531E-15 1.496127215499552E-14 -4.881846131363692E-12 2.735999547497608E-14 -1.330183785936929E-12 1.256711607880939E-14
tp 1.929776156405267E-12 -4.881846131363692E-12 8.900045282180577E-9 -8.684201758870092E-12 2.474428926912944E-9 -9.171076073183519E-12
node -1.184188262109008E-14 2.735999547497608E-14 -8.684201758870092E-12 1.260168459700561E-9 -1.253548318310784E-9 4.93178561122343E-11
peri 5.22750487279977E-13 -1.330183785936929E-12 2.474428926912944E-9 -1.253548318310784E-9 1.941336794411394E-9 -5.148466767057348E-11
i -5.021174671221206E-15 1.256711607880939E-14 -9.171076073183519E-12 4.93178561122343E-11 -5.148466767057348E-11 3.073658270066024E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0   n/a MPO417508  

100752 (1998 EF20)          Discovered 1998-Mar-03 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 EF20 = 2002 GM87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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