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JPL Small-Body Database Browser
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5007 Keay (1990 UH2)
Classification: Main-belt Asteroid          SPK-ID: 2005007
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1893830122790225 4.5312e-08  
a 2.678517909912492 1.268e-08 au
q 2.171252119689953 1.2339e-07 au
i 13.35473526589567 5.6223e-06 deg
node 169.0010642223176 1.6933e-05 deg
peri 161.4741217888479 2.0962e-05 deg
M 319.1319103937892 1.3378e-05 deg
tp 2459182.269953023702
(2020-Nov-28.76995302)
6.0005e-05 TDB
period 1601.180376158032
4.38
1.137e-05
3.113e-08
d
yr
n .2248341319694447 1.5966e-09 deg/d
Q 3.185783700135031 1.5082e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1643  
   data-arc span      16420 days (44.96 yr)  
   first obs. used      1975-01-23  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51988  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 19:48:42  

Additional Information
 Earth MOID = 1.16547 au 
 Jupiter MOID = 2.23528 au 
 T_jup = 3.314 
[ 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 13.1   n/a MPO337295  
diameter diameter 7.308 km 0.257 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.251   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5007 Keay (1990 UH2)          Discovered 1990-Oct-20 by McNaught, R. H. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1990 UH2 = 1981 TT2 = 1989 KH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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