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9182 (1991 NB4)
Classification: Main-belt Asteroid          SPK-ID: 2009182
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0891884145538812 4.4588e-08  
a 2.285426194910146 1.2994e-08 AU
q 2.081592656006201 9.9338e-08 AU
i 3.724719361628526 6.0437e-06 deg
node 271.1083637811058 8.5661e-05 deg
peri 157.2564258341543 9.7416e-05 deg
M 148.2819735945305 4.6173e-05 deg
tp 2456480.701424372063
(2013-Jul-07.20142437)
0.00016072 JED
period 1261.970573292663
3.46
1.0763e-05
2.947e-08
d
yr
n .2852681414438279 2.4329e-09 deg/d
Q 2.489259733814091 1.4153e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1189  
   data-arc span      8370 days (22.92 yr)  
   first obs. used      1991-07-08  
   last obs. used      2014-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49999  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:41:45  

Additional Information
 Earth MOID = 1.09592 AU 
 T_jup = 3.594 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO279612  

9182 (1991 NB4)          Discovered 1991-Jul-08 by Debehogne, H. at La Silla (809)
Reference: 19980910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 NB4 = 1933 WG = 1992 YU 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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