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JPL Small-Body Database Browser
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9819 Sangerhausen (2172 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2009819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1809857012247445 3.3584e-08  
a 2.188704571159762 5.6615e-09 au
q 1.792580339574609 7.357e-08 au
i 2.453362732905167 2.7695e-06 deg
node 56.65954061350296 8.732e-05 deg
peri 245.0909785745498 8.7746e-05 deg
M 328.1917417621022 9.165e-06 deg
tp 2459105.000058150355
3.0168e-05 TDB
period 1182.712384084757
n .3043850769167234 1.181e-09 deg/d
Q 2.584828802744915 6.6861e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1773  
   data-arc span      17842 days (48.85 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51181  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:28:36  

Additional Information
 Earth MOID = .778838 au 
 Jupiter MOID = 2.63313 au 
 T_jup = 3.652 
[ 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 14.9   n/a MPO313498  
diameter diameter 2.685 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.295   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

9819 Sangerhausen           Discovered 1971 Mar. 25 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
In the vicinity of the German city of Sangerhausen, a remarkable archaeological object was unearthed. This 4000-year-old bronze disc shows a quasi-real starry sky. Its similarity to Homer's Iliad 18, 484--486 is striking. The name was suggested by W. Schlosser and L. D. Schmadel.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021120/MPCPages.arcLast Updated: 2003-10-02

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
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
2200-Sep-25 16:18 00:06 Amphi 0.0350388616232082 0.0350205528847088 0.0350571704406739 3.55138328141963 3.55138323522138 2524861.178902457 6.05954041471679 916.001829788003 35.601869531864 -5.14063143049371 14358.6440483536 T 28 CATAB v2.0f-lin.ifort 2020-Feb-22 19:28:54 2020-Feb-22 19:28

Alternate Designations
 2172 T-1 = 1981 JV5 = 1997 GY15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Apr-03 16:55 UT
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