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JPL Small-Body Database Browser
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7924 Simbirsk (1986 PW4)
Classification: Main-belt Asteroid          SPK-ID: 2007924
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1608301191661883 3.0297e-08  
a 3.10184104541021 1.4257e-08 au
q 2.602971580442312 9.3188e-08 au
i 1.163045772376786 3.9117e-06 deg
node 191.0160389238674 0.00017075 deg
peri 114.1349203619482 0.00017117 deg
M 18.46902046189726 1.1998e-05 deg
tp 2458498.130850210288
(2019-Jan-14.63085021)
6.6453e-05 TDB
period 1995.389739284008
5.46
1.3757e-05
3.766e-08
d
yr
n .1804158821269554 1.2438e-09 deg/d
Q 3.600710510378108 1.6549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2207  
   data-arc span      24628 days (67.43 yr)  
   first obs. used      1952-05-24  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48608  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:06:03  

Additional Information
 Earth MOID = 1.58738 au 
 Jupiter MOID = 1.64439 au 
 T_jup = 3.201 
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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 12.9   n/a MPO332893  
diameter diameter 12.997 km 0.445 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.087   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7924 Simbirsk           Discovered 1986 Aug. 6 by N. S. Chernykh and L. I. Chernykh at the Crimean Astrophysical Observatory.
Named for the city of Simbirsk (Ul'yanovsk since 1924), a large industrial and cultural center on the Volga river. Founded in 1648, it is connected with many great events and people in Russian history.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980808/MPCPages.arcLast Updated: 2009-11-17

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Alternate Designations
 1986 PW4 = 1981 TV3 = 1989 AL4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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