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30955 Weiser (1994 PG29)
Classification: Main-belt Asteroid          SPK-ID: 2030955
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1736731469596632 1.8309e-08  
a 3.187853826180237 1.7418e-08 au
q 2.634209220140112 5.9851e-08 au
i 6.890744172441008 4.9669e-07 deg
node 350.8382641683261 6.1511e-06 deg
peri 94.88514273879071 1.0162e-05 deg
M 165.4927470016204 9.8684e-06 deg
tp 2458440.798010865790
(2018-Nov-18.29801087)
5.2655e-05 TDB
period 2078.959485064001
5.69
1.7039e-05
4.665e-08
d
yr
n .1731635477200834 1.4192e-09 deg/d
Q 3.741498432220363 2.0443e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1942  
   data-arc span      11551 days (31.62 yr)  
   first obs. used      1989-11-04  
   last obs. used      2021-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48855  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:50:28  

Additional Information
 Earth MOID = 1.66171 au 
 Jupiter MOID = 1.55021 au 
 T_jup = 3.163 
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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 13.0   n/a MPO502389  
diameter diameter 16.517 km 0.286 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.054   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30955 Weiser           Discovered 1994 Aug. 12 by E. W. Elst at the European Southern Observatory.
German palaeontologic geologist Thorolf Weiser (b. 1938) published an in situ investigation of the Nördlinger Ries crater. He later changed his field to mineralogy, using electron-microprobe analysis for the determination of several new minerals.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080122/MPCPages.arcLast Updated: 2008-03-05

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Alternate Designations
 1994 PG29 = 1989 VM2 = 2000 QH8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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