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7875 (1991 ES1)
Classification: Main-belt Asteroid          SPK-ID: 2007875
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1787747931031996 4.8599e-08  
a 2.645098232488686 2.3959e-08 AU
q 2.172221343237883 1.2563e-07 AU
i 14.14391163912359 6.9608e-06 deg
node 165.4619877554799 2.1489e-05 deg
peri 264.5180614264318 2.8277e-05 deg
M 265.4489328596968 2.0794e-05 deg
tp 2457413.191067505455
(2016-Jan-25.69106751)
9.3232e-05 JED
period 1571.307324131038
4.30
2.1349e-05
5.845e-08
d
yr
n .2291085865071537 3.1128e-09 deg/d
Q 3.11797512173949 2.8242e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1166  
   data-arc span      13761 days (37.68 yr)  
   first obs. used      1976-09-28  
   last obs. used      2014-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47912  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:11:35  

Additional Information
 Earth MOID = 1.23851 AU 
 T_jup = 3.328 
[ 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 12.2 mag n/a MPO263419  

7875 (1991 ES1)          Discovered 1991-Mar-07 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1991 ES1 = 1976 SL8 = 1993 PM4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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