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3271 Ul (1982 RB)
Classification: Amor [NEO]          SPK-ID: 2003271
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3956582781161145 1.4831e-07  
a 2.102063487585505 5.9027e-08 AU
q 1.27036466759667 3.1907e-07 AU
i 25.06949453163714 1.9996e-05 deg
node 158.841981479685 3.0179e-05 deg
peri 159.0554419734135 0.00013378 deg
M 219.787070004808 0.00020855 deg
tp 2457434.063520293658
(2016-Feb-15.56352029)
0.000663 JED
period 1113.184549463941
3.05
4.6888e-05
1.284e-07
d
yr
n .3233965115428161 1.3622e-08 deg/d
Q 2.93376230757434 8.2381e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      110  
   data-arc span      11457 days (31.37 yr)  
   first obs. used      1982-09-14  
   last obs. used      2014-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58927  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 17:49:52  

Additional Information
 Earth MOID = .27778 AU 
 T_jup = 3.533 
[ 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 16.5 mag n/a MPO226142  

3271 Ul (1982 RB)          Discovered 1982-Sep-14 by Schuster, H.-E. at La Silla (809)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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