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146492 (2001 SB20)
Classification: Main-belt Asteroid          SPK-ID: 2146492
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1539452093486476 4.2205e-08  
a 2.608306076633303 1.6519e-08 au
q 2.20676985162064 1.1098e-07 au
i 5.316289910561878 5.5783e-06 deg
node 90.52211167007746 5.6674e-05 deg
peri 246.3679692924416 6.0372e-05 deg
M 89.14261883968058 2.1973e-05 deg
tp 2458219.505115547049
(2018-Apr-11.00511555)
9.2949e-05 TDB
period 1538.637300411108
4.21
1.4617e-05
4.002e-08
d
yr
n .2339732696612852 2.2227e-09 deg/d
Q 3.009842301645967 1.9062e-08 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      7752 days (21.22 yr)  
   first obs. used      1997-11-06  
   last obs. used      2019-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61187  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:12:17  

Additional Information
 Earth MOID = 1.20277 au 
 Jupiter MOID = 2.36288 au 
 T_jup = 3.388 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456855.5 (2014-Jul-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1547743690925131 4.2311e-08  
q 2.203538179193294 1.1133e-07 au
tp 2456676.415547782255
(2014-Jan-18.91554778)
8.9111e-05 TDB
node 90.68889253523005 5.6617e-05 deg
peri 245.2565115424786 6.0259e-05 deg
i 5.319119224736472 5.5791e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      7752 days (21.22 yr)  
   first obs. used      1997-11-06  
   last obs. used      2019-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61187  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:12:17  

Additional Information
 Jupiter MOID = 2.36288 au 
 T_jup = 3.388 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.790207375492004E-15 -4.673204262234605E-15 6.576994339805496E-13 -1.172924577478201E-14 1.21996584349077E-13 2.833311634201577E-16
q -4.673204262234605E-15 1.239409700192645E-14 -1.562676241358861E-12 2.803427030828518E-14 -2.754549637522844E-13 -2.68219655047652E-16
tp 6.576994339805496E-13 -1.562676241358861E-12 7.940685932861193E-9 -4.102785023738507E-11 1.868729341502249E-9 -2.935611274559711E-12
node -1.172924577478201E-14 2.803427030828518E-14 -4.102785023738507E-11 3.205529690535913E-9 -3.200392554600834E-9 -7.741325026542335E-11
peri 1.21996584349077E-13 -2.754549637522844E-13 1.868729341502249E-9 -3.200392554600834E-9 3.631183033851651E-9 7.641835785205747E-11
i 2.833311634201577E-16 -2.68219655047652E-16 -2.935611274559711E-12 -7.741325026542335E-11 7.641835785205747E-11 3.112580253735197E-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 16.2   n/a MPO469553  

146492 (2001 SB20)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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