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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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1357860087838639 2.736e-08  
a 2.936322657565875 1.4223e-08 au
q 2.537611123393376 8.34e-08 au
i 1.973624209305163 3.0721e-06 deg
node 39.21816942520021 0.00011278 deg
peri 326.4534585223015 0.00011373 deg
M 10.62634888354709 1.4688e-05 deg
tp 2458946.251758961237
(2020-Apr-06.75175896)
7.4956e-05 TDB
period 1837.824730580078
5.03
1.3353e-05
3.656e-08
d
yr
n .1958837499625833 1.4232e-09 deg/d
Q 3.335034191738373 1.6154e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2051  
   data-arc span      15868 days (43.44 yr)  
   first obs. used      1977-02-19  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52114  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:02:28  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1911-Dec-14 11:43 00:08 Cybel 0.0240228348155678 0.0240207833555499 0.0240248930364414 2.6501588791542 2.65015878360659 2419384.987884261 8.17284707811007 729.012215281775 48.7163513816937 82.8957701751229 73123.0952648323 T 33 CATAB v2.0f-lin.ifort 2020-Aug-25 00:02:45 2020-Aug-25 00:02
2005-Jan-29 15:05 00:02 Psych 0.0354510847092654 0.0354495797091526 0.0354525897259742 1.50823760945935 1.50823738317532 2453400.128499389 1.49856801923118 84.9398705316715 26.9257818235665 30.3440852291898 112448.724412125 T 33 CATAB v2.0f-lin.ifort 2020-Aug-25 00:02:45 2020-Aug-25 00:02

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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