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8695 Bergvall (1993 FW8)
Classification: Main-belt Asteroid          SPK-ID: 2008695
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04394952507820662 2.8349e-08  
a 2.888066948297035 1.2067e-08 au
q 2.761137777525315 8.2549e-08 au
i 2.863673841649002 3.2292e-06 deg
node 57.80138875474591 6.5981e-05 deg
peri 302.98563063 7.7923e-05 deg
M 99.30527688505445 4.0262e-05 deg
tp 2458901.985378179821
(2020-Feb-22.48537818)
0.00020089 TDB
period 1792.706988384192
4.91
1.1236e-05
3.076e-08
d
yr
n .2008136311916072 1.2586e-09 deg/d
Q 3.014996119068756 1.2597e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1769  
   data-arc span      11148 days (30.52 yr)  
   first obs. used      1990-09-25  
   last obs. used      2021-04-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50938  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 15:51:14  

Additional Information
 Earth MOID = 1.7581 au 
 Jupiter MOID = 2.18622 au 
 T_jup = 3.288 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.38   n/a MPCxxxxx  
diameter diameter 4.023 km 0.524 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.228   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

8695 Bergvall           Discovered 1993 Mar. 17 at the European Southern Observatory in the course of the Uppsala-ESO Survey of Asteroids and Comets.
Nils Bergvall (b. 1945), astronomer at Uppsala Observatory, studies galaxy evolution and is also interested in music.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020328/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1993 FW8 = 1990 SQ23 = 1995 UX27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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