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JPL Small-Body Database Browser
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91879 (1999 UZ45)
Classification: Main-belt Asteroid          SPK-ID: 2091879
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07383171306399454 5.8585e-08  
a 3.142181041702725 3.4358e-08 au
q 2.910188432636606 1.8505e-07 au
i 7.773415280253148 9.1211e-06 deg
node 312.5788196102098 4.4444e-05 deg
peri 85.33302777236374 7.7056e-05 deg
M 255.1003289903016 6.2111e-05 deg
tp 2459593.311825219584
(2022-Jan-13.81182522)
0.0003531 TDB
period 2034.441624314717
5.57
3.3368e-05
9.136e-08
d
yr
n .1769527302712668 2.9023e-09 deg/d
Q 3.374173650768844 3.6894e-08 au
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      7205 days (19.73 yr)  
   first obs. used      1998-06-26  
   last obs. used      2018-03-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60083  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 03:24:33  

Additional Information
 Earth MOID = 1.93081 au 
 Jupiter MOID = 1.96245 au 
 T_jup = 3.192 
[ 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 14.9   n/a MPO348078  
diameter diameter 4.368 km 0.368 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.134   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91879 (1999 UZ45)          Discovered 1999-Oct-31 by CSS at Catalina
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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