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48475 (1991 UD2)
Classification: Main-belt Asteroid          SPK-ID: 2048475
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05457502224125216 6.559e-08  
a 3.045373146261051 3.327e-08 AU
q 2.879171839070942 2.116e-07 AU
i 11.34927829252114 7.9465e-06 deg
node 34.20092921819881 3.3706e-05 deg
peri 99.02451882519598 8.6959e-05 deg
M 36.59245655730338 7.7422e-05 deg
tp 2456803.190378804204
(2014-May-25.69037880)
0.00041734 JED
period 1941.150453215739
5.31
3.181e-05
8.709e-08
d
yr
n .1854570311145221 3.0391e-09 deg/d
Q 3.21157445345116 3.5086e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      909  
   data-arc span      8487 days (23.24 yr)  
   first obs. used      1991-10-29  
   last obs. used      2015-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48258  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 15:04:22  

Additional Information
 Earth MOID = 1.92055 AU 
 T_jup = 3.207 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8 mag n/a MPO279997  

48475 (1991 UD2)          Discovered 1991-Oct-29 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 UD2 = 1999 FY26 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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