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JPL Small-Body Database Browser
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11813 Ingorichter (1981 EQ23)
Classification: Main-belt Asteroid          SPK-ID: 2011813
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .101535189106519 3.9669e-08  
a 3.110384511123518 2.4141e-08 au
q 2.794571031592604 1.3138e-07 au
i 6.17501606997793 6.2646e-06 deg
node 172.1781984322077 4.0783e-05 deg
peri 95.2253377620148 5.4057e-05 deg
M 257.5218318224084 3.899e-05 deg
tp 2459170.859133639925
(2020-Nov-17.35913364)
0.00022003 TDB
period 2003.639328862157
5.49
2.3327e-05
6.387e-08
d
yr
n .1796730553319892 2.0918e-09 deg/d
Q 3.426197990654432 2.6593e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1087  
   data-arc span      13957 days (38.21 yr)  
   first obs. used      1981-02-09  
   last obs. used      2019-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53547  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:14:15  

Additional Information
 Earth MOID = 1.78726 au 
 Jupiter MOID = 1.67844 au 
 T_jup = 3.202 
[ 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 13.8   n/a MPO473926  
diameter diameter 9.756 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11813 Ingorichter           Discovered 1981 Mar. 3 by S. J. Bus at Siding Spring.
Ingo Richter (b. 1964) is a scientist at the Braunschweig University of Technology (Germany) whose research includes detection and analysis of asteroid magnetic fields and comet solar wind interactions using spacecraft measurements.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-04-19

[ show close-approach data ]
Alternate Designations
 1981 EQ23 = 1994 SN12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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