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JPL Small-Body Database Browser
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3271 Ul (1982 RB)
Classification: Amor [NEO]          SPK-ID: 2003271
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 53 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3957754450837961 1.4319e-07  
a 2.101435378558774 4.5601e-08 au
q 1.26973885629484 3.0235e-07 au
i 25.06877299156526 1.9069e-05 deg
node 158.8271838683163 1.7035e-05 deg
peri 159.0469830401131 0.00010382 deg
M 17.54091919790381 0.00018042 deg
tp 2458546.284641566824
(2019-Mar-03.78464157)
0.0005559 TDB
period 1112.685647527278
3.05
3.6218e-05
9.916e-08
d
yr
n .3235415148923941 1.0531e-08 deg/d
Q 2.933131900822709 6.3649e-08 au
  Orbit Determination Parameters
   # obs. used (total)      179  
   data-arc span      12993 days (35.57 yr)  
   first obs. used      1982-09-14  
   last obs. used      2018-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .60404  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Apr-12 06:36:11  

Additional Information
 Earth MOID = .275729 au 
 Jupiter MOID = 2.49283 au 
 T_jup = 3.533 
[ 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 16.4   n/a MPO435729  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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