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3887 Gerstner (1985 QX)
Classification: Main-belt Asteroid          SPK-ID: 2003887
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1102020289327494 3.3177e-08  
a 2.993424792217644 1.4431e-08 au
q 2.663543306657666 1.0269e-07 au
i 9.928898822423685 4.1403e-06 deg
node 191.1382881154054 1.8553e-05 deg
peri 141.9338760877482 2.5697e-05 deg
M 257.9542409873823 1.8689e-05 deg
tp 2459536.720500016584
(2021-Nov-18.22050002)
9.9873e-05 TDB
period 1891.694293558063
5.18
1.3679e-05
3.745e-08
d
yr
n .1903055907214694 1.3762e-09 deg/d
Q 3.323306277777622 1.6021e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2129  
   data-arc span      23646 days (64.74 yr)  
   first obs. used      1955-12-11  
   last obs. used      2020-09-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48231  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:56:17  

Additional Information
 Earth MOID = 1.66262 au 
 Jupiter MOID = 2.12739 au 
 T_jup = 3.223 
[ 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 12.8   n/a MPO473819  
diameter diameter 8.647 km 0.154 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.259   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3887 Gerstner           Discovered 1985 Aug. 22 by A. Mrkos at Klet.
Named in memory of the physicist František Josef Gerstner (1756-1832) and his son František Antonín Gerstner (1795-1840). F. J. Gerstner worked at the observatories in Vienna and Prague but then turned from astronomy to applied mathematics, physics, mechanics and metallurgy. He founded the Prague Polytechnic School, later Technical University, in 1806. He also designed the horse railroad from České Budějovice to Linz. F. A. Gerstner continued building this horse railroad, which was completed in 1832 and is considered the first railroad in continental Europe. Name suggested by J. Ticha and M. Šolc.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19960828/MPCPages.arcLast Updated: 2003-09-26

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Alternate Designations
 1985 QX = 1975 TW2 = 1980 TM6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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