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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 54 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3957754784712599 1.1726e-07  
a 2.101435337665414 3.4394e-08 au
q 1.269738761424471 2.3667e-07 au
i 25.06876979333824 1.3556e-05 deg
node 158.8271768166959 1.4652e-05 deg
peri 159.0469288932378 8.4051e-05 deg
M 17.54105398814432 0.00013616 deg
tp 2458546.284226540566
(2019-Mar-03.78422654)
0.00041955 TDB
period 1112.685615048438
3.05
2.7317e-05
7.479e-08
d
yr
n .323541524336439 7.9431e-09 deg/d
Q 2.933131913906357 4.8007e-08 au
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      13647 days (37.36 yr)  
   first obs. used      1982-09-14  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58944  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-25 05:45:58  

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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