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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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1893830137741384 4.5034e-08  
a 2.678517909965213 1.2637e-08 au
q 2.171252115727995 1.2268e-07 au
i 13.35473484122013 5.5774e-06 deg
node 169.0010637945462 1.6913e-05 deg
peri 161.4741226195649 2.0906e-05 deg
M 319.1319099661285 1.3294e-05 deg
tp 2459182.269954931185
(2020-Nov-28.76995493)
5.9627e-05 TDB
period 1601.180376205306
4.38
1.1331e-05
3.102e-08
d
yr
n .2248341319628065 1.5911e-09 deg/d
Q 3.185783704202431 1.503e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1659  
   data-arc span      16525 days (45.24 yr)  
   first obs. used      1975-01-23  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51864  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:15:01  

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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