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100521 (1997 BX5)
Classification: Main-belt Asteroid          SPK-ID: 2100521
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05900304758741229 4.7774e-08  
a 3.136460401062998 2.6618e-08 au
q 2.951399678763044 1.5356e-07 au
i 6.971714846342621 4.4391e-06 deg
node 123.0785625799276 5.4777e-05 deg
peri 310.85571249 7.5955e-05 deg
M 150.2006318904344 5.28e-05 deg
tp 2458353.999149058986
(2018-Aug-23.49914906)
0.00029502 TDB
period 2028.888310943068
5.55
2.5827e-05
7.071e-08
d
yr
n .1774370713549356 2.2587e-09 deg/d
Q 3.321521123362953 2.8188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      572  
   data-arc span      8514 days (23.31 yr)  
   first obs. used      1997-01-26  
   last obs. used      2020-05-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58622  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:32:34  

Additional Information
 Earth MOID = 1.97222 au 
 Jupiter MOID = 1.84499 au 
 T_jup = 3.198 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456858.5 (2014-Jul-20.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05992855133340289 4.7192e-08  
q 2.948983700131227 1.5189e-07 au
tp 2456332.248921509262
(2013-Feb-08.74892151)
0.00028865 TDB
node 123.0942233873711 5.4776e-05 deg
peri 312.39724419647 7.5703e-05 deg
i 6.971651167862534 4.439e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      572  
   data-arc span      8514 days (23.31 yr)  
   first obs. used      1997-01-26  
   last obs. used      2020-05-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58622  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:32:34  

Additional Information
 Jupiter MOID = 1.84499 au 
 T_jup = 3.198 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.227108936321127E-15 -7.071095891997453E-15 -5.658709595229281E-12 -4.010541029986289E-15 -1.026000965260649E-12 -2.147535707376876E-15
q -7.071095891997453E-15 2.307165280437987E-14 1.865176355446935E-11 1.464655232774552E-14 3.406402193664617E-12 7.317316815060092E-15
tp -5.658709595229281E-12 1.865176355446935E-11 8.332029513293003E-8 -8.476654674333793E-12 1.51676297216582E-8 1.00131345916773E-11
node -4.010541029986289E-15 1.464655232774552E-14 -8.476654674333793E-12 3.000366063065985E-9 -2.979087386266586E-9 3.637764138750041E-11
peri -1.026000965260649E-12 3.406402193664617E-12 1.51676297216582E-8 -2.979087386266586E-9 5.730893664536816E-9 -3.427741321857418E-11
i -2.147535707376876E-15 7.317316815060092E-15 1.00131345916773E-11 3.637764138750041E-11 -3.427741321857418E-11 1.970439489623105E-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 14.87   n/a E2021B55  

100521 (1997 BX5)          Discovered 1997-Jan-26 by Galad, A., Pravda, A. at Modra
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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