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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2124479606458421 5.51e-08  
a 3.094482409294442 1.9504e-08 au
q 2.437065932185406 1.6761e-07 au
i 20.06640461322827 5.3171e-06 deg
node 25.80030005413534 1.1412e-05 deg
peri 338.3937046254951 1.4388e-05 deg
M 128.2782696505939 1.0553e-05 deg
tp 2458292.014369043627
(2018-Jun-22.51436904)
5.5887e-05 TDB
period 1988.293323873296
5.44
1.8798e-05
5.147e-08
d
yr
n .1810598042439241 1.7118e-09 deg/d
Q 3.751898886403478 2.3648e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1870  
   data-arc span      10906 days (29.86 yr)  
   first obs. used      1990-08-11  
   last obs. used      2020-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45921  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:21:37  

Additional Information
 Earth MOID = 1.44686 au 
 Jupiter MOID = 1.73885 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 12.5   n/a MPO459052  
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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