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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3959873803679807 1.4831e-07  
a 2.101280139168817 5.2615e-08 au
q 1.269199721440091 3.1874e-07 au
i 25.07471748230827 1.9867e-05 deg
node 158.8434874143427 2.2613e-05 deg
peri 159.1021449358243 0.00011865 deg
M 53.86184392558502 0.00019477 deg
tp 2457434.042611532729
(2016-Feb-15.54261153)
0.00059573 JED
period 1112.562353621035
3.05
4.1787e-05
1.144e-07
d
yr
n .3235773696892717 1.2153e-08 deg/d
Q 2.933360556897544 7.345e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      11906 days (32.60 yr)  
   first obs. used      1982-09-14  
   last obs. used      2015-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55349  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:43:02  

Additional Information
 Earth MOID = .275281 au 
 Jupiter MOID = 2.48504 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 16.6 mag n/a MPO337277  

3271 Ul (1982 RB)          Discovered 1982-Sep-14 by Schuster, H.-E. at La Silla
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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