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91847 (1999 UW5)
Classification: Main-belt Asteroid          SPK-ID: 2091847
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0640130478460742 3.9109e-08  
a 3.154783718553454 2.4758e-08 au
q 2.952836397433676 1.2644e-07 au
i 11.3216732464297 5.2987e-06 deg
node 7.328925562542099 2.4068e-05 deg
peri 69.58905903027353 5.4677e-05 deg
M 213.712724155706 5.1865e-05 deg
tp 2459832.181162573333
(2022-Sep-09.68116257)
0.00029965 TDB
period 2046.693513146573
5.60
2.4093e-05
6.596e-08
d
yr
n .1758934582474629 2.0706e-09 deg/d
Q 3.356731039673233 2.6343e-08 au
  Orbit Determination Parameters
   # obs. used (total)      851  
   data-arc span      7651 days (20.95 yr)  
   first obs. used      1999-10-03  
   last obs. used      2020-09-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52686  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:38:17  

Additional Information
 Earth MOID = 1.99068 au 
 Jupiter MOID = 1.84377 au 
 T_jup = 3.173 
[ 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 14.2   n/a MPO436414  

91847 (1999 UW5)          Discovered 1999-Oct-29 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 UW5 = 2001 CW39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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