Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
8435 Anser (6643 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2008435
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1683969867477494 4.0607e-08  
a 2.220114885967162 7.3885e-09 au
q 1.846254228936468 9.0117e-08 au
i 4.792655377679235 5.2493e-06 deg
node 31.19788557672779 4.7362e-05 deg
peri 19.18980627488451 4.9527e-05 deg
M 338.3125451493319 1.6606e-05 deg
tp 2459073.289324207886
(2020-Aug-11.78932421)
5.5902e-05 TDB
period 1208.263343728953
3.31
6.0316e-06
1.651e-08
d
yr
n .2979482923722281 1.4873e-09 deg/d
Q 2.593975542997855 8.6327e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1396  
   data-arc span      21055 days (57.65 yr)  
   first obs. used      1960-09-26  
   last obs. used      2018-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52631  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 13:02:21  

Additional Information
 Earth MOID = .857304 au 
 Jupiter MOID = 2.77536 au 
 T_jup = 3.627 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456083.5 (2012-Jun-05.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1687095218318485 4.0885e-08  
q 1.846107090023734 9.0828e-08 au
tp 2456655.176512556994
(2013-Dec-28.67651256)
5.0891e-05 TDB
node 31.30644882239837 4.7273e-05 deg
peri 18.78562543067424 4.9418e-05 deg
i 4.797935210875876 5.2528e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1396  
   data-arc span      21055 days (57.65 yr)  
   first obs. used      1960-09-26  
   last obs. used      2018-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52631  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 13:02:21  

Additional Information
 Jupiter MOID = 2.77536 au 
 T_jup = 3.627 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.671585410851181E-15 -3.704930654886566E-15 -8.679716376446234E-13 1.407693334447572E-15 -2.545044457750582E-13 -1.850307653794247E-16
q -3.704930654886566E-15 8.249729424185515E-15 2.016403846314551E-12 -3.408158171889484E-15 5.844707575724641E-13 4.838420902459048E-16
tp -8.679716376446234E-13 2.016403846314551E-12 2.5898600243652E-9 -4.784948151395991E-12 7.437639405627794E-10 1.620413490327314E-12
node 1.407693334447572E-15 -3.408158171889484E-15 -4.784948151395991E-12 2.234699867190677E-9 -2.227699502638388E-9 -8.375504318606639E-11
peri -2.545044457750582E-13 5.844707575724641E-13 7.437639405627794E-10 -2.227699502638388E-9 2.442177915455641E-9 8.390092587474551E-11
i -1.850307653794247E-16 4.838420902459048E-16 1.620413490327314E-12 -8.375504318606639E-11 8.390092587474551E-11 2.759160339956071E-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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-21 22:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin