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20622 (1999 TQ11)
Classification: Main-belt Asteroid          SPK-ID: 2020622
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .146572816243722 3.8011e-08  
a 3.196672743036144 1.8791e-08 au
q 2.728127416479792 1.2448e-07 au
i 6.411603639585554 4.1246e-06 deg
node 96.61485090938352 3.4746e-05 deg
peri 290.9565014918199 3.7139e-05 deg
M 265.8070933599849 1.5726e-05 deg
tp 2459746.712194511526
(2022-Jun-16.21219451)
9.3697e-05 TDB
period 2087.592336179317
5.72
1.8408e-05
5.04e-08
d
yr
n .172447461968972 1.5206e-09 deg/d
Q 3.665218069592495 2.1546e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1700  
   data-arc span      9398 days (25.73 yr)  
   first obs. used      1994-11-29  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48908  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:25:10  

Additional Information
 Earth MOID = 1.74037 au 
 Jupiter MOID = 1.80941 au 
 T_jup = 3.169 
[ 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 13.33   n/a E2021B10  
diameter diameter 12.337 km 0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20622 (1999 TQ11)          Discovered 1999-Oct-08 by Klet at Klet
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TQ11 = 1997 JV16 = 1997 LF12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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