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JPL Small-Body Database Browser
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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 
[ show covariance matrix ]

[ 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)		 Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1923-Oct-16 20:18 00:12 Europ 0.0331742499962345 0.0331449613070228 0.0332035389379248 3.22879392041947 3.22879382119238 2423709.345996031 11.777049563915 1465.85479343085 77.4491608175919 5.59368674792254 7087.94482120628 T 14 CATAB v2.0e-lin.ifort 2019-Jul-13 15:12:21 2019-Jul-13 15:12
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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