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109984 (2001 SB57)
Classification: Main-belt Asteroid          SPK-ID: 2109984
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .2302717282232332 5.457e-08  
a 2.63816244946336 1.5131e-08 au
q 2.030668222891794 1.4576e-07 au
i 13.54762969826947 1.1282e-05 deg
node 35.20371370614695 1.8375e-05 deg
peri 61.27550402808041 2.8914e-05 deg
M 346.5766668181662 2.1223e-05 deg
tp 2458658.859101627832
(2019-Jun-24.35910163)
9.2438e-05 TDB
period 1565.13112663047
4.29
1.3465e-05
3.687e-08
d
yr
n .2300126768132422 1.9788e-09 deg/d
Q 3.245656676034926 1.8615e-08 au
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      12480 days (34.17 yr)  
   first obs. used      1984-11-20  
   last obs. used      2019-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60883  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:03:38  

Additional Information
 Earth MOID = 1.08415 au 
 Jupiter MOID = 2.14654 au 
 T_jup = 3.320 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456811.5 (2014-Jun-03.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .229779271128582 5.4313e-08  
q 2.031857472085437 1.4479e-07 au
tp 2457095.357665624066
(2015-Mar-13.85766562)
8.9049e-05 TDB
node 35.23420556687012 1.8387e-05 deg
peri 61.5402985017377 2.8957e-05 deg
i 13.54259097861738 1.1277e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      12480 days (34.17 yr)  
   first obs. used      1984-11-20  
   last obs. used      2019-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60883  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:03:38  

Additional Information
 Jupiter MOID = 2.14654 au 
 T_jup = 3.320 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.949942834790048E-15 -7.838731977698098E-15 -3.227968866323764E-12 1.899757631017756E-14 -7.825887117164613E-13 -1.838835137716719E-14
q -7.838731977698098E-15 2.096315840854588E-14 8.694686134622113E-12 -4.995537390320107E-14 2.098216023782784E-12 5.083632738444062E-14
tp -3.227968866323764E-12 8.694686134622113E-12 7.929770156852615E-9 -3.365342000887599E-11 1.996665188574007E-9 3.625619627261858E-11
node 1.899757631017756E-14 -4.995537390320107E-14 -3.365342000887599E-11 3.380994647334659E-10 -3.361343607833794E-10 -9.537593739816279E-12
peri -7.825887117164613E-13 2.098216023782784E-12 1.996665188574007E-9 -3.361343607833794E-10 8.38484525266076E-10 1.800844832888915E-11
i -1.838835137716719E-14 5.083632738444062E-14 3.625619627261858E-11 -9.537593739816279E-12 1.800844832888915E-11 1.271818896704502E-10

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 15.5   n/a MPO453561  

109984 (2001 SB57)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 SB57 = 1984 WH2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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