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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457165.5 (2015-May-23.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08925341941187301 3.6321e-08  
q 2.717644785001371 1.0925e-07 au
tp 2456624.376866256489
(2013-Nov-27.87686626)
0.00015934 TDB
node 323.5534742152425 4.8737e-05 deg
peri 327.5962055437674 5.7289e-05 deg
i 4.604294368837447 5.0323e-06 deg
  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
 Jupiter MOID = 1.92033 au 
 T_jup = 3.247 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.319221492978822E-15 -3.890997897479037E-15 1.863862606412388E-12 4.36477612253874E-15 3.364562460296857E-13 -3.513434250201079E-16
q -3.890997897479037E-15 1.193590809999317E-14 -6.862022685544107E-12 -1.499841242562619E-14 -1.227541886537439E-12 1.554092253194678E-15
tp 1.863862606412388E-12 -6.862022685544107E-12 2.539054330657052E-8 3.517427106417926E-11 4.811454584953642E-9 3.632397112205456E-13
node 4.36477612253874E-15 -1.499841242562619E-14 3.517427106417926E-11 2.375336266883156E-9 -2.360725876869518E-9 7.816978580993413E-11
peri 3.364562460296857E-13 -1.227541886537439E-12 4.811454584953642E-9 -2.360725876869518E-9 3.282043696762946E-9 -7.786088244175024E-11
i -3.513434250201079E-16 1.554092253194678E-15 3.632397112205456E-13 7.816978580993413E-11 -7.786088244175024E-11 2.532359128964341E-11

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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