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JPL Small-Body Database Browser
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160055 (1999 UQ44)
Classification: Main-belt Asteroid          SPK-ID: 2160055
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .264532892578806 7.2272e-08  
a 2.552772593829853 1.2555e-08 au
q 1.877480275488141 1.9111e-07 au
i 4.551602952050962 5.6882e-06 deg
node 129.212617699581 4.3691e-05 deg
peri 234.8751936918161 4.5268e-05 deg
M 299.7291171326368 1.3463e-05 deg
tp 2458849.914485214013
(2020-Jan-01.41448521)
5.7125e-05 TDB
period 1489.761065465754
4.08
1.0991e-05
3.009e-08
d
yr
n .2416494888644782 1.7828e-09 deg/d
Q 3.228064912171565 1.5877e-08 au
  Orbit Determination Parameters
   # obs. used (total)      764  
   data-arc span      10188 days (27.89 yr)  
   first obs. used      1991-12-03  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54018  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 18:37:37  

Additional Information
 Earth MOID = .87873 au 
 Jupiter MOID = 2.23314 au 
 T_jup = 3.385 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO417852  
diameter diameter 2.809 km 0.623 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.063   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160055 (1999 UQ44)          Discovered 1999-Oct-30 by LONEOS at Anderson Mesa
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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