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17484 Ganghofer (1991 RY4)
Classification: Main-belt Asteroid          SPK-ID: 2017484
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718942550866353 4.3036e-08  
a 2.700631708595551 1.1237e-08 au
q 2.236408632783172 1.1423e-07 au
i 2.211666287557599 3.7513e-06 deg
node 214.9069208806115 9.1684e-05 deg
peri 148.0627334391502 9.2199e-05 deg
M 213.3168666311808 1.2647e-05 deg
tp 2459861.002017319243
(2022-Oct-08.50201732)
5.9174e-05 TDB
period 1621.050224207121
4.44
1.0117e-05
2.77e-08
d
yr
n .2220782518790133 1.3861e-09 deg/d
Q 3.164854784407931 1.3169e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1443  
   data-arc span      15456 days (42.32 yr)  
   first obs. used      1978-11-29  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50784  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:33:33  

Additional Information
 Earth MOID = 1.23279 au 
 Jupiter MOID = 2.29961 au 
 T_jup = 3.345 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.66   n/a E2021B10  
diameter diameter 4.741 km 0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17484 Ganghofer           Discovered 1991 Sept. 13 by F. Borngen and L. D. Schmadel at Tautenburg.
German author Ludwig Ganghofer (1855-1920), son of a forester, studied philosophy, was a dramatic advisor and editor, first in Vienna and later in Bavaria. He wrote numerous popular romantic dramas, short stories and novels, mainly with climbing or hunting themes. Some of these were made into movies.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1991 RY4 = 1978 WP1 = 1978 WY16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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