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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 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3956582725885423 1.4845e-07  
a 2.102063472059144 5.2792e-08 AU
q 1.27036466983275 3.1931e-07 AU
i 25.06949278235081 1.9859e-05 deg
node 158.8419986894632 2.2617e-05 deg
peri 159.0553917887523 0.00011861 deg
M 219.7871280114226 0.00018756 deg
tp 2457434.063336123196
(2016-Feb-15.56333612)
0.00059616 JED
period 1113.184537130556
3.05
4.1936e-05
1.148e-07
d
yr
n .3233965151258461 1.2183e-08 deg/d
Q 2.933762274285538 7.368e-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 = .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 16.6 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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