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8870 von Zeipel (1992 EQ11)
Classification: Main-belt Asteroid          SPK-ID: 2008870
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1357860082287459 2.74e-08  
a 2.936322658013482 1.4247e-08 au
q 2.537611125410211 8.3551e-08 au
i 1.973624186662796 3.0723e-06 deg
node 39.21816857402192 0.00011298 deg
peri 326.4534597743946 0.00011392 deg
M 10.62634835724049 1.4716e-05 deg
tp 2458946.251761635664
(2020-Apr-06.75176164)
7.5096e-05 TDB
period 1837.824731000309
5.03
1.3376e-05
3.662e-08
d
yr
n .1958837499177931 1.4257e-09 deg/d
Q 3.335034190616754 1.6182e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2032  
   data-arc span      15661 days (42.88 yr)  
   first obs. used      1977-02-19  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52286  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:05:48  

Additional Information
 Earth MOID = 1.53623 au 
 Jupiter MOID = 2.1231 au 
 T_jup = 3.260 
[ 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 13.2   n/a MPO449001  

8870 von Zeipel           Discovered 1992 Mar. 6 at the European Southern Observatory in the course of the Uppsala-ESO Survey of Asteroids and Comets.
Hugo von Zeipel (1873-1959), professor of astronomy at Uppsala University during 1911-1920, is still well known for his theoretical work in celestial mechanics and astrophysics.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000320/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1992 EQ11 = 1977 DY10 = 1994 OD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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