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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04426147175709266 1.2222e-07  
a 3.106750909990363 3.2726e-08 au
q 2.969241542331503 3.9654e-07 au
i 15.64500792931242 6.3222e-06 deg
node 29.50856191626512 2.1626e-05 deg
peri 125.3640397061737 0.00011921 deg
M 323.6354918638813 0.00010646 deg
tp 2459402.538109050475
(2021-Jul-07.03810905)		 0.0005901 TDB
period 2000.129329012667
5.48		 3.1604e-05
8.653e-08		 d
yr
n .179988361141481 2.844e-09 deg/d
Q 3.244260277649224 3.4175e-08 au
   Orbit Determination Parameters
   # obs. used (total)      322  
   data-arc span      8506 days (23.29 yr)  
   first obs. used      1997-10-03  
   last obs. used      2021-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50679  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:25:48  

Additional Information
 Earth MOID = 1.99715 au 
 Jupiter MOID = 1.75377 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 15.3   n/a MPO532308  
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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