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JPL Small-Body Database Browser
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11352 Koldewey (1997 WP22)
Classification: Main-belt Asteroid          SPK-ID: 2011352
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .171769984913499 4.2724e-08  
a 3.172220093076685 1.7662e-08 au
q 2.627327895546604 1.399e-07 au
i 2.330650769605764 3.8928e-06 deg
node 114.2644649917223 0.00011217 deg
peri 235.6840503772705 0.00011263 deg
M 42.32084258553383 1.0348e-05 deg
tp 2458357.897540588673
5.9375e-05 TDB
period 2063.684937547333
n .1744452331119188 1.4569e-09 deg/d
Q 3.717112290606766 2.0696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1991  
   data-arc span      12819 days (35.10 yr)  
   first obs. used      1984-09-25  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51696  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:30:52  

Additional Information
 Earth MOID = 1.62123 au 
 Jupiter MOID = 1.70866 au 
 T_jup = 3.177 
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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 12.9   n/a MPO337354  
diameter diameter 12.701 km 0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 6.32 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.063   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

11352 Koldewey           Discovered 1997 Nov. 28 by the OCA-DLR Asteroid Survey at Caussols.
Eberhard Koldewey (b. 1937), at the DLR Institute of Space Sensor Technology and Planetary Exploration, contributed to the upgrade of the Bochum telescope at the European Southern Observatory, where he participated in many observing campaigns on minor planets. The naming is on the occasion of his retirement.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20011130/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1997 WP22 = 1984 SM2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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