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23494 (1991 SE2)
Classification: Main-belt Asteroid          SPK-ID: 2023494
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .228994985379464 4.7842e-08  
a 2.362576275747211 1.2376e-08 AU
q 1.82155815602461 1.1259e-07 AU
i 2.417266318706883 5.3496e-06 deg
node 168.1485103488024 0.00011328 deg
peri 145.2874796738515 0.00011388 deg
M 166.672780731717 1.5105e-05 deg
tp 2456386.399621364639
(2013-Apr-03.89962136)
5.31e-05 JED
period 1326.408159377762
3.63
1.0422e-05
2.853e-08
d
yr
n .2714096693802617 2.1327e-09 deg/d
Q 2.903594395469812 1.521e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1157  
   data-arc span      22757 days (62.31 yr)  
   first obs. used      1953-01-09  
   last obs. used      2015-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49641  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:45:10  

Additional Information
 Earth MOID = .80919 AU 
 T_jup = 3.513 
[ 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 14.5 mag n/a MPO337457  

23494 (1991 SE2)          Discovered 1991-Sep-16 by Holt, H. E. at Palomar
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 SE2 = 1994 GM 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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