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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2121754080791243 6.0272e-08  
a 3.095020994511786 2.0258e-08 au
q 2.438333651987791 1.8576e-07 au
i 20.06592334778314 6.7696e-06 deg
node 25.81740690009008 1.1485e-05 deg
peri 338.422322331716 1.5158e-05 deg
M 55.84508156818815 1.0768e-05 deg
tp 2458291.985021014039
(2018-Jun-22.48502101)
5.8823e-05 TDB
period 1988.812431034461
5.45
1.9526e-05
5.346e-08
d
yr
n .1810125451663381 1.7772e-09 deg/d
Q 3.751708337035781 2.4556e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1528  
   data-arc span      10700 days (29.30 yr)  
   first obs. used      1990-08-11  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47938  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 01:07:18  

Additional Information
 Earth MOID = 1.44731 au 
 Jupiter MOID = 1.73571 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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