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212315 (2005 QZ55)
Classification: Main-belt Asteroid          SPK-ID: 2212315
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1575122303242945 4.7492e-08  
a 3.105934182868418 3.2428e-08 au
q 2.616711562484348 1.5919e-07 au
i 13.68574462369962 5.0529e-06 deg
node 167.7096523373785 2.2018e-05 deg
peri 163.089117103413 2.9377e-05 deg
M 266.1024854026859 2.2573e-05 deg
tp 2459521.980887205996
(2021-Nov-03.48088721)
0.00013071 TDB
period 1999.340666249419
5.47
3.1312e-05
8.573e-08
d
yr
n .1800593596064482 2.8199e-09 deg/d
Q 3.595156803252488 3.7536e-08 au
  Orbit Determination Parameters
   # obs. used (total)      505  
   data-arc span      8532 days (23.36 yr)  
   first obs. used      1997-03-12  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57648  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 04:01:50  

Additional Information
 Earth MOID = 1.60997 au 
 Jupiter MOID = 1.83625 au 
 T_jup = 3.158 
[ 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 14.9   n/a MPO433387  
diameter diameter 3.727 km 0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.184   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212315 (2005 QZ55)          Discovered 2005-Aug-28 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2005 QZ55 = 2004 LS5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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