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91883 (1999 UG49)
Classification: Main-belt Asteroid          SPK-ID: 2091883
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1329672916037778 3.583e-08  
a 3.17572659312797 2.2792e-08 au
q 2.753458829165651 1.1853e-07 au
i 4.176238223033803 4.1185e-06 deg
node 277.8815704767586 5.9925e-05 deg
peri 117.9438326389913 6.2293e-05 deg
M 305.0211160701603 1.8204e-05 deg
tp 2459712.186859128233
(2022-May-12.68685913)
0.00010624 TDB
period 2067.107608644672
5.66
2.2253e-05
6.093e-08
d
yr
n .1741563905500009 1.8749e-09 deg/d
Q 3.597994357090289 2.5823e-08 au
  Orbit Determination Parameters
   # obs. used (total)      690  
   data-arc span      8454 days (23.15 yr)  
   first obs. used      1998-06-16  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53116  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:02:55  

Additional Information
 Earth MOID = 1.76309 au 
 Jupiter MOID = 1.84089 au 
 T_jup = 3.183 
[ 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 15.00   n/a MPCxxxxx  
diameter diameter 5.286 km 0.326 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.076   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91883 (1999 UG49)          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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