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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0442614963053981 1.21e-07  
a 3.106750909110365 3.2667e-08 au
q 2.969241465224985 3.9316e-07 au
i 15.64500894288856 6.0613e-06 deg
node 29.50856145955924 2.1621e-05 deg
peri 125.3640659042833 0.00011749 deg
M 323.6354672261651 0.00010463 deg
tp 2459402.538245849684
(2021-Jul-07.03824585)
0.00057989 TDB
period 2000.129328162851
5.48
3.1546e-05
8.637e-08
d
yr
n .1799883612179545 2.8388e-09 deg/d
Q 3.244260352995745 3.4113e-08 au
  Orbit Determination Parameters
   # obs. used (total)      343  
   data-arc span      8556 days (23.43 yr)  
   first obs. used      1997-10-03  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49599  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:33:00  

Additional Information
 Earth MOID = 1.99715 au 
 Jupiter MOID = 1.75377 au 
 T_jup = 3.162 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457845.5 (2017-Apr-02.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04493624893940267 1.2288e-07  
q 2.965842676757219 4.0095e-07 au
tp 2457411.478160119175
(2016-Jan-23.97816012)
0.00056605 TDB
node 29.51966957289855 2.1611e-05 deg
peri 126.7414029961412 0.00011229 deg
i 15.65085295603865 6.0635e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      343  
   data-arc span      8556 days (23.43 yr)  
   first obs. used      1997-10-03  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49599  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:33:00  

Additional Information
 Jupiter MOID = 1.75377 au 
 T_jup = 3.162 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.510066811936087E-14 -4.916208133855925E-14 5.1523618417101E-11 -6.298571225660935E-14 1.035264830998774E-11 -5.349258845979809E-14
q -4.916208133855925E-14 1.60758422162912E-13 -1.695971738720154E-10 2.058561703883611E-13 -3.402356176456567E-11 1.742261371747499E-13
tp 5.1523618417101E-11 -1.695971738720154E-10 3.204179128008989E-7 -2.87958205477275E-10 6.237775307986549E-8 -1.34970761689658E-10
node -6.298571225660935E-14 2.058561703883611E-13 -2.87958205477275E-10 4.670550077588076E-10 -5.061086856481044E-10 -2.39304867942397E-11
peri 1.035264830998774E-11 -3.402356176456567E-11 6.237775307986549E-8 -5.061086856481044E-10 1.260977411770754E-8 -4.396816019459385E-12
i -5.349258845979809E-14 1.742261371747499E-13 -1.34970761689658E-10 -2.39304867942397E-11 -4.396816019459385E-12 3.676575492751152E-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 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

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