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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1470566504195225 3.7984e-08  
a 3.193842175265917 1.8961e-08 au
q 2.724166443002709 1.2403e-07 au
i 6.413322247500806 4.1306e-06 deg
node 96.61187074093853 3.4754e-05 deg
peri 291.2797603628756 3.7128e-05 deg
M 230.9749766142352 1.5535e-05 deg
tp 2459747.705482600569
(2022-Jun-17.20548260)
9.3356e-05 TDB
period 2084.820189739124
5.71
1.8566e-05
5.083e-08
d
yr
n .1726767621360417 1.5377e-09 deg/d
Q 3.663517907529124 2.175e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1695  
   data-arc span      9398 days (25.73 yr)  
   first obs. used      1994-11-29  
   last obs. used      2020-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48736  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:01:42  

Additional Information
 Earth MOID = 1.73767 au 
 Jupiter MOID = 1.809 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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