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27723 (1990 QA)
Classification: Main-belt Asteroid          SPK-ID: 2027723
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2126663039366443 1.9974e-08  
a 3.093985729424909 1.8011e-08 au
q 2.435999219915391 6.5509e-08 au
i 20.06928329273507 1.8893e-06 deg
node 25.79179400570866 5.1806e-06 deg
peri 338.3967852460282 6.5724e-06 deg
M 164.4882339010753 8.1108e-06 deg
tp 2458292.244109614593
(2018-Jun-22.74410961)
4.1707e-05 TDB
period 1987.814646580681
5.44
1.7358e-05
4.752e-08
d
yr
n .1811034044946043 1.5814e-09 deg/d
Q 3.751972238934427 2.1842e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2060  
   data-arc span      11183 days (30.62 yr)  
   first obs. used      1990-08-11  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45334  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:06:26  

Additional Information
 Earth MOID = 1.44435 au 
 Jupiter MOID = 1.73992 au 
 T_jup = 3.097 
[ 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 12.56   n/a MPCxxxxx  
diameter diameter 17.925 km 0.331 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27723 (1990 QA)          Discovered 1990-Aug-19 by McNaught, R. H. at Siding Spring
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 QA = 1996 TY10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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