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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3952447854600853 1.6528e-07  
a 2.102742156828687 5.5649e-08 AU
q 1.271644284175055 3.5684e-07 AU
i 25.04842419539185 2.3244e-05 deg
node 158.8594252972065 3.2916e-05 deg
peri 158.9908710538385 0.00012376 deg
M 155.2206387379652 0.00019533 deg
tp 2456320.297490894716
(2013-Jan-27.79749089)
0.00058535 JED
period 1113.723694757736
3.05
4.4212e-05
1.21e-07
d
yr
n .3232399577152837 1.2832e-08 deg/d
Q 2.933840029482318 7.7644e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      108  
   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      .60654  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 17:57:09  

Additional Information
 Earth MOID = .277384 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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