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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2293709032277785 4.7891e-08  
a 2.361197522162059 1.2846e-08 AU
q 1.819607513804555 1.1261e-07 AU
i 2.415774842676648 5.7093e-06 deg
node 168.2073251104417 0.00012931 deg
peri 145.068667772602 0.00013 deg
M 112.5747507187123 1.5307e-05 deg
tp 2456386.085065189128
(2013-Apr-03.58506519)
5.4961e-05 JED
period 1325.24722976904
3.63
1.0815e-05
2.961e-08
d
yr
n .2716474269202884 2.2168e-09 deg/d
Q 2.902787530519563 1.5793e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      990  
   data-arc span      22311 days (61.08 yr)  
   first obs. used      1953-01-09  
   last obs. used      2014-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50961  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 23:33:08  

Additional Information
 Earth MOID = .805311 AU 
 T_jup = 3.514 
[ 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 14.4 mag n/a MPO266078  

23494 (1991 SE2)          Discovered 1991-Sep-16 by Holt, H. E. at Palomar (675)
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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