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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1608301187485291 2.9698e-08  
a 3.101841045541989 1.4037e-08 au
q 2.602971581848409 9.0863e-08 au
i 1.16304569816057 3.9113e-06 deg
node 191.0160989131704 0.00016439 deg
peri 114.1348604291542 0.00016483 deg
M 18.46902036121896 1.1858e-05 deg
tp 2458498.130850761799
(2019-Jan-14.63085076)
6.5692e-05 TDB
period 1995.389739411166
5.46
1.3545e-05
3.708e-08
d
yr
n .1804158821154583 1.2247e-09 deg/d
Q 3.600710509235568 1.6295e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2250  
   data-arc span      24658 days (67.51 yr)  
   first obs. used      1952-05-24  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48261  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 21:50:08  

Additional Information
 Earth MOID = 1.58738 au 
 Jupiter MOID = 1.64439 au 
 T_jup = 3.201 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456627.5 (2013-Dec-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1650082230758225 2.9671e-08  
q 2.588442957000901 9.1317e-08 au
tp 2456505.361213750346
(2013-Jul-31.86121375)
6.484e-05 TDB
node 191.076687757322 0.00016502 deg
peri 114.541819231197 0.00016543 deg
i 1.15858219839017 3.9151e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2250  
   data-arc span      24658 days (67.51 yr)  
   first obs. used      1952-05-24  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48261  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 21:50:08  

Additional Information
 Jupiter MOID = 1.64439 au 
 T_jup = 3.201 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.803774699290191E-16 -2.687523728271046E-15 2.169170419740279E-13 -9.541725454312419E-16 3.472215651109694E-14 -5.808206724196913E-17
q -2.687523728271046E-15 8.338742368537231E-15 -8.268095023148708E-13 3.669873682453286E-15 -1.337332229409937E-13 2.504247469295714E-16
tp 2.169170419740279E-13 -8.268095023148708E-13 4.204267482490674E-9 5.494563226562859E-12 7.689656932817885E-10 8.424534958558576E-14
node -9.541725454312419E-16 3.669873682453286E-15 5.494563226562859E-12 2.723170099846482E-8 -2.722517364275579E-8 1.587430698395288E-11
peri 3.472215651109694E-14 -1.337332229409937E-13 7.689656932817885E-10 -2.722517364275579E-8 2.736821651320119E-8 -1.585535722409456E-11
i -5.808206724196913E-17 2.504247469295714E-16 8.424534958558576E-14 1.587430698395288E-11 -1.585535722409456E-11 1.532832814538038E-11

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

[ show close-approach data ]
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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