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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1360314762092646 9.8138e-09  
a 2.937668524565305 1.1788e-08 au
q 2.538053138555195 2.7308e-08 au
i 1.973367379932394 9.1905e-07 deg
node 39.21377478761983 1.471e-05 deg
peri 326.6039720186898 1.9458e-05 deg
M 88.02138318388479 8.5335e-06 deg
tp 2458946.835812981078
(2020-Apr-07.33581298)
4.3241e-05 TDB
period 1839.088429099457
5.04
1.1069e-05
3.031e-08
d
yr
n .1957491517557318 1.1782e-09 deg/d
Q 3.337283910575416 1.3391e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2523  
   data-arc span      16136 days (44.18 yr)  
   first obs. used      1977-02-19  
   last obs. used      2021-04-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49302  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 15:53:21  

Additional Information
 Earth MOID = 1.53589 au 
 Jupiter MOID = 2.12257 au 
 T_jup = 3.259 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457215.5 (2015-Jul-12.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1396778782533604 1.0128e-08  
q 2.525272274819675 2.8258e-08 au
tp 2457101.917153020543
(2015-Mar-20.41715302)
4.0701e-05 TDB
node 39.27489496062265 1.4649e-05 deg
peri 325.4274921772929 1.9056e-05 deg
i 1.981732299559482 9.1858e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2523  
   data-arc span      16136 days (44.18 yr)  
   first obs. used      1977-02-19  
   last obs. used      2021-04-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49302  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 15:53:21  

Additional Information
 Jupiter MOID = 2.12257 au 
 T_jup = 3.259 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.025670096298999E-16 -2.694096794511083E-16 -1.236885192042748E-13 7.944388654724765E-14 -1.146109028472416E-13 5.087128850216363E-15
q -2.694096794511083E-16 7.98540417608543E-16 3.106887161612444E-13 -2.322886537988928E-13 3.237760521853916E-13 -1.508640645191389E-14
tp -1.236885192042748E-13 3.106887161612444E-13 1.656609721704904E-9 -1.079047608516029E-10 4.935925382551136E-10 -3.243218991590935E-12
node 7.944388654724765E-14 -2.322886537988928E-13 -1.079047608516029E-10 2.145858958001639E-10 -2.435012042935653E-10 8.403548790681494E-12
peri -1.146109028472416E-13 3.237760521853916E-13 4.935925382551136E-10 -2.435012042935653E-10 3.631372659104675E-10 -9.690181670059231E-12
i 5.087128850216363E-15 -1.508640645191389E-14 -3.243218991590935E-12 8.403548790681494E-12 -9.690181670059231E-12 8.437967923343592E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.24   n/a E2021B10  

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

Alternate Designations
 1992 EQ11 = 1977 DY10 = 1994 OD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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