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JPL Small-Body Database Browser
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91876 (1999 UO44)
Classification: Main-belt Asteroid          SPK-ID: 2091876
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1802996329055334 3.9319e-08  
a 3.045558686587234 2.2809e-08 au
q 2.496445573403297 1.223e-07 au
i 10.7028776943508 5.4939e-06 deg
node 55.41921345485031 2.8909e-05 deg
peri 56.73689410963931 3.4335e-05 deg
M 245.2060196047557 1.6771e-05 deg
tp 2459619.535421060480
(2022-Feb-09.03542106)
9.1422e-05 TDB
period 1941.327853729558
5.32
2.1808e-05
5.971e-08
d
yr
n .1854400838623885 2.0832e-09 deg/d
Q 3.594671799771171 2.6921e-08 au
  Orbit Determination Parameters
   # obs. used (total)      887  
   data-arc span      6804 days (18.63 yr)  
   first obs. used      1999-10-04  
   last obs. used      2018-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54862  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 15:41:20  

Additional Information
 Earth MOID = 1.53188 au 
 Jupiter MOID = 1.68091 au 
 T_jup = 3.187 
[ 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 MPO412708  

91876 (1999 UO44)          Discovered 1999-Oct-30 by LONEOS at Anderson Mesa
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 UO44 = 2001 DH51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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