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10348 Poelchau (1992 HL4)
Classification: Main-belt Asteroid          SPK-ID: 2010348
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1403415064484351 1.988e-08  
a 2.289229041253131 7.1699e-09 au
q 1.96795518899816 4.7683e-08 au
i 8.202201546628825 2.2225e-07 deg
node 23.96989577898466 5.4252e-06 deg
peri 208.2390837671026 8.9133e-06 deg
M 79.70482496491655 8.861e-06 deg
tp 2458920.399161692393
(2020-Mar-11.89916169)
3.0645e-05 TDB
period 1265.121676575079
3.46
5.9435e-06
1.627e-08
d
yr
n .2845576094898534 1.3369e-09 deg/d
Q 2.610502893508102 8.1761e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2109  
   data-arc span      15059 days (41.23 yr)  
   first obs. used      1979-09-20  
   last obs. used      2020-12-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45377  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:01:42  

Additional Information
 Earth MOID = .960907 au 
 Jupiter MOID = 2.38455 au 
 T_jup = 3.573 
[ 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 13.66   n/a E2021B10  
diameter diameter 4.902 km 0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.31 h n/a LCDB (Rev. 2020-October); 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 0.321   0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

10348 Poelchau           Discovered 1992 Apr. 29 by F. Borngen at Tautenburg.
As a chaplain at the penitentiaries of Tegel, Plötzensee and Brandenburg-Görden in Berlin during 1933-1945, protestant theologian Harald Poelchau (1903-1972) comforted more than a thousand people condemned to death by the nazi regime.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19991123/MPCPages.arcLast Updated: 2010-06-11

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Alternate Designations
 1992 HL4 = 1979 SS13 = 1983 VS2 = 1993 TP44 = 2016 FO6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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