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6102 Visby (1993 FQ25)
Classification: Main-belt Asteroid          SPK-ID: 2006102
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .163618234336222 3.3116e-08  
a 2.599528959083798 9.1621e-09 au
q 2.174198620692629 8.6792e-08 au
i 1.760323003624334 3.6829e-06 deg
node 310.709718217513 0.00011275 deg
peri 358.366542988212 0.00011337 deg
M 120.83184447536 1.0484e-05 deg
tp 2458686.670161005863
(2019-Jul-22.17016101)
4.4934e-05 TDB
period 1530.877417629839
4.19
8.0934e-06
2.216e-08
d
yr
n .2351592595554549 1.2432e-09 deg/d
Q 3.024859297474966 1.0661e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2173  
   data-arc span      11652 days (31.90 yr)  
   first obs. used      1989-04-01  
   last obs. used      2021-02-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50378  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 18:20:18  

Additional Information
 Earth MOID = 1.15758 au 
 Jupiter MOID = 2.22718 au 
 T_jup = 3.396 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456756.5 (2014-Apr-09.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1643699750422817 3.3085e-08  
q 2.17131686759809 8.6846e-08 au
tp 2457158.111884960100
(2015-May-15.61188496)
4.6796e-05 TDB
node 310.8323704491394 0.00011279 deg
peri 358.6739464132978 0.00011342 deg
i 1.760078788532996 3.684e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2173  
   data-arc span      11652 days (31.90 yr)  
   first obs. used      1989-04-01  
   last obs. used      2021-02-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50378  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 18:20:18  

Additional Information
 Jupiter MOID = 2.22718 au 
 T_jup = 3.396 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.094592916437437E-15 -2.861855334244862E-15 4.636695863798715E-13 6.286242379450445E-15 9.883770738782446E-14 -3.739832428174506E-16
q -2.861855334244862E-15 7.542219164401064E-15 -1.330713775216433E-12 -1.594664380677326E-14 -2.93189535000418E-13 1.078458111347851E-15
tp 4.636695863798715E-13 -1.330713775216433E-12 2.189903878909373E-9 4.719072558765891E-12 5.678791420299246E-10 -4.002695196157231E-13
node 6.286242379450445E-15 -1.594664380677326E-14 4.719072558765891E-12 1.272246221351817E-8 -1.271452856492412E-8 1.234770596820876E-10
peri 9.883770738782446E-14 -2.93189535000418E-13 5.678791420299246E-10 -1.271452856492412E-8 1.286299561954949E-8 -1.235201760976862E-10
i -3.739832428174506E-16 1.078458111347851E-15 -4.002695196157231E-13 1.234770596820876E-10 -1.235201760976862E-10 1.357177756149874E-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 13.89   n/a MPCxxxxx  
diameter diameter 4.473 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.28 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
geometric albedo albedo 0.292   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6102 Visby           Discovered 1993 Mar. 21 at the European Southern Observatory in the course of the Uppsala-ESO Survey of Asteroids and Comets.
Visby is a city, still surrounded by a medieval wall, on the Swedish island of Gotland.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990928/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 1993 FQ25 = 1990 TV11 = 1991 YQ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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