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192636 (1999 QL2)
Classification: Main-belt Asteroid          SPK-ID: 2192636
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1768585021890001 6.7297e-08  
a 2.64017342339874 2.1145e-08 au
q 2.173236306217234 1.8751e-07 au
i 11.37992620205339 5.8523e-06 deg
node 168.2252177356998 2.1285e-05 deg
peri 173.1219391001532 2.6418e-05 deg
M 338.7907374363887 1.5612e-05 deg
tp 2459292.814554295284
(2021-Mar-19.31455430)
6.8631e-05 TDB
period 1566.921030216312
4.29
1.8824e-05
5.154e-08
d
yr
n .2297499319096524 2.76e-09 deg/d
Q 3.107110540580246 2.4884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      355  
   data-arc span      7658 days (20.97 yr)  
   first obs. used      1999-08-31  
   last obs. used      2020-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59391  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:16:57  

Additional Information
 Earth MOID = 1.16393 au 
 Jupiter MOID = 2.31562 au 
 T_jup = 3.345 
[ 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 15.98   n/a E2021B55  
diameter diameter 3.960 km 0.681 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

192636 (1999 QL2)          Discovered 1999-Aug-31 by Sarounova, L. at Ondrejov
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

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