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JPL Small-Body Database Browser
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65708 Ehrlich (1992 RB1)
Classification: Main-belt Asteroid          SPK-ID: 2065708
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1902899208810163 3.5436e-08  
a 2.394200306035648 8.8449e-09 au
q 1.938608119226819 8.4912e-08 au
i 2.798163598344424 4.0272e-06 deg
node 2.235562809829084 7.7722e-05 deg
peri 357.1291621421453 7.8364e-05 deg
M 171.1062339089299 1.0073e-05 deg
tp 2458357.364501525034
3.7017e-05 TDB
period 1353.128837925434
n .2660500537051138 1.4743e-09 deg/d
Q 2.849792492844476 1.0528e-08 au
  Orbit Determination Parameters
   # obs. used (total)      937  
   data-arc span      9633 days (26.37 yr)  
   first obs. used      1992-09-04  
   last obs. used      2019-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52025  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:33:48  

Additional Information
 Earth MOID = .935126 au 
 Jupiter MOID = 2.59963 au 
 T_jup = 3.504 
[ 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 15.7   n/a MPO453052  
diameter diameter 4.601 km 0.364 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.030   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

65708 Ehrlich           Discovered 1992 Sept. 4 by F. Börngen and L. D. Schmadel at Tautenburg.
Paul Ehrlich (1854-1915) is known for his pioneering work in hematology, immunology and chemotherapy. He introduced new diagnostic methods and discovered the first effective treatment for syphilis. He received the 1908 Nobel Prize in medicine jointly with Élie Metchnikoff.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040107/MPCPages.arcLast Updated: 2004-01-07

[ 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
1930-Jul-23 15:04 00:02 Eunom 0.0494255141821199 0.0494098217403338 0.0494412069379245 3.86863789873488 3.86863782531991 2426181.127958497 2.44113542551466 805.94886739424 25.0497144814652 -14.1067122536179 72405.1950837781 T 20 CATAB v2.0f-lin.ifort 2019-Sep-24 02:33:53 2019-Sep-24 02:33

Alternate Designations
 1992 RB1 = 2000 YP52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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