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100620 (1997 TM20)
Classification: Main-belt Asteroid          SPK-ID: 2100620
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0442858635045781 1.4762e-07  
a 3.10630557506094 3.3896e-08 au
q 2.968740150360281 4.68e-07 au
i 15.64606513561439 9.9477e-06 deg
node 29.51714445526205 2.2499e-05 deg
peri 125.5915699509106 0.00015181 deg
M 287.4115925433654 0.00014016 deg
tp 2459403.708295568173
(2021-Jul-08.20829557)		 0.0007776 TDB
period 1999.699283818292
5.47		 3.2731e-05
8.961e-08		 d
yr
n .1800270685263257 2.9467e-09 deg/d
Q 3.243870999761599 3.5398e-08 au
   Orbit Determination Parameters
   # obs. used (total)      265  
   data-arc span      8143 days (22.29 yr)  
   first obs. used      1997-10-03  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5344  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:08:31  

Additional Information
 Earth MOID = 1.9969 au 
 Jupiter MOID = 1.7549 au 
 T_jup = 3.162 
[ 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 15.2   n/a MPO502723  
diameter diameter 5.645 km 0.163 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100620 (1997 TM20)          Discovered 1997-Oct-03 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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