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JPL Small-Body Database Browser
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20844 (2000 UK97)
Classification: Main-belt Asteroid          SPK-ID: 2020844
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1305545162700082 5.3163e-08  
a 2.650963250362281 1.2115e-08 au
q 2.304868025561665 1.4088e-07 au
i 9.577117470566721 5.8999e-06 deg
node 9.174796641042509 2.3068e-05 deg
peri 152.8254542178007 2.9383e-05 deg
M 1.993969973885141 1.658e-05 deg
tp 2458591.767871838813
(2019-Apr-18.26787184)
7.2601e-05 TDB
period 1576.53634668437
4.32
1.0807e-05
2.959e-08
d
yr
n .2283486839723802 1.5653e-09 deg/d
Q 2.997058475162897 1.3696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1548  
   data-arc span      15744 days (43.10 yr)  
   first obs. used      1976-04-01  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45993  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:55:59  

Additional Information
 Earth MOID = 1.31688 au 
 Jupiter MOID = 1.98239 au 
 T_jup = 3.358 
[ 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 13.7   n/a MPO337434  
diameter diameter 4.497 km 0.174 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.348   0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20844 (2000 UK97)          Discovered 2000-Oct-25 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 UK97 = 1976 GS = 1976 GU7 = 1989 ES1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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