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91874 (1999 UW43)
Classification: Main-belt Asteroid          SPK-ID: 2091874
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08691961297822939 3.6252e-08  
a 2.984712704147274 2.3369e-08 au
q 2.725282631051588 1.0832e-07 au
i 4.599508198631802 5.0251e-06 deg
node 323.356513888079 4.8823e-05 deg
peri 326.8564507670195 5.7759e-05 deg
M 95.0515043533638 2.9686e-05 deg
tp 2458503.211149743236
(2019-Jan-19.71114974)
0.00015655 TDB
period 1883.441901423199
5.16
2.212e-05
6.056e-08
d
yr
n .1911394239068221 2.2448e-09 deg/d
Q 3.24414277724296 2.5401e-08 au
  Orbit Determination Parameters
   # obs. used (total)      852  
   data-arc span      7770 days (21.27 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52983  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:17:42  

Additional Information
 Earth MOID = 1.71057 au 
 Jupiter MOID = 1.92033 au 
 T_jup = 3.247 
[ 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 14.5   n/a MPO449565  

91874 (1999 UW43)          Discovered 1999-Oct-29 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 UW43 = 2000 YN110 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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