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JPL Small-Body Database Browser
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8435 Anser (6643 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2008435
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1683970315238368 4.0245e-08  
a 2.220114890105699 7.2512e-09 au
q 1.84625413297003 8.928e-08 au
i 4.792654825282468 5.1873e-06 deg
node 31.19790288408371 4.6739e-05 deg
peri 19.18980136006235 4.8879e-05 deg
M 338.312532393526 1.6446e-05 deg
tp 2459073.289367223563
(2020-Aug-11.78936722)
5.5362e-05 TDB
period 1208.263347107456
3.31
5.9195e-06
1.621e-08
d
yr
n .2979482915391158 1.4597e-09 deg/d
Q 2.593975647241368 8.4722e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1420  
   data-arc span      21490 days (58.84 yr)  
   first obs. used      1960-09-26  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53152  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:54:27  

Additional Information
 Earth MOID = .857304 au 
 Jupiter MOID = 2.77536 au 
 T_jup = 3.627 
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Orbital Elements at Epoch 2456068.5 (2012-May-21.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1687080233999357 4.0522e-08  
q 1.846114051761507 8.9987e-08 au
tp 2456655.169211442796
(2013-Dec-28.66921144)
5.0399e-05 TDB
node 31.30660798952054 4.6651e-05 deg
peri 18.7835158080317 4.8772e-05 deg
i 4.797961101180968 5.1907e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1420  
   data-arc span      21490 days (58.84 yr)  
   first obs. used      1960-09-26  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53152  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:54:27  

Additional Information
 Jupiter MOID = 2.77536 au 
 T_jup = 3.627 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.642007188013704E-15 -3.638147724842248E-15 -8.511527406596551E-13 6.910404682744217E-16 -2.480222881105154E-13 -1.347600799205356E-16
q -3.638147724842248E-15 8.097587541684797E-15 1.978120429673898E-12 -1.845417755446827E-15 5.698480417610206E-13 3.75375605371159E-16
tp -8.511527406596551E-13 1.978120429673898E-12 2.540077329967654E-9 -4.204598591869454E-12 7.274500427979919E-10 1.600834457273843E-12
node 6.910404682744217E-16 -1.845417755446827E-15 -4.204598591869454E-12 2.176282461121245E-9 -2.169318746025881E-9 -8.091417621412272E-11
peri -2.480222881105154E-13 5.698480417610206E-13 7.274500427979919E-10 -2.169318746025881E-9 2.378718892998933E-9 8.10629763680712E-11
i -1.347600799205356E-16 3.75375605371159E-16 1.600834457273843E-12 -8.091417621412272E-11 8.10629763680712E-11 2.694327668318584E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO337327  
diameter diameter 2.944 km 0.471 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.295   0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

8435 Anser           Discovered 1960 Sept. 26 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Named for Anser anser, or greylag goose.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990202/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 6643 P-L = 1990 VA1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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