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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1636693906199365 3.4307e-08  
a 2.598940191792484 9.5993e-09 au
q 2.173573234344148 9.0482e-08 au
i 1.760326367957462 3.8144e-06 deg
node 310.7092225188597 0.00011688 deg
peri 358.2889964364306 0.0001176 deg
M 73.87253115994622 1.1174e-05 deg
tp 2458686.468412907697
(2019-Jul-21.96841291)
4.7893e-05 TDB
period 1530.357354460406
4.19
8.4787e-06
2.321e-08
d
yr
n .2352391740077817 1.3033e-09 deg/d
Q 3.024307149240821 1.117e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2056  
   data-arc span      11551 days (31.62 yr)  
   first obs. used      1989-04-01  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51188  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 19:59:06  

Additional Information
 Earth MOID = 1.15894 au 
 Jupiter MOID = 2.22789 au 
 T_jup = 3.396 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456663.5 (2014-Jan-06.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1643333368294986 3.4336e-08  
q 2.171304830050374 9.0733e-08 au
tp 2457158.203547375436
(2015-May-15.70354738)
5.0499e-05 TDB
node 310.8320310591108 0.00011691 deg
peri 358.6962051366727 0.00011762 deg
i 1.760072309837639 3.816e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2056  
   data-arc span      11551 days (31.62 yr)  
   first obs. used      1989-04-01  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51188  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 19:59:06  

Additional Information
 Jupiter MOID = 2.22789 au 
 T_jup = 3.396 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.178966476764762E-15 -3.1030539569341E-15 6.381611068388749E-13 6.934105088466329E-15 1.484994732762738E-13 -4.502045863651668E-16
q -3.1030539569341E-15 8.232416142621174E-15 -1.831306951692614E-12 -1.779103990660931E-14 -4.358439114553218E-13 1.297663427702328E-15
tp 6.381611068388749E-13 -1.831306951692614E-12 2.550182045618831E-9 7.549049256709741E-12 6.689888187381988E-10 -4.975990727408655E-13
node 6.934105088466329E-15 -1.779103990660931E-14 7.549049256709741E-12 1.366743081728556E-8 -1.365819960362924E-8 1.537684026000563E-10
peri 1.484994732762738E-13 -4.358439114553218E-13 6.689888187381988E-10 -1.365819960362924E-8 1.383540319737289E-8 -1.538242955604052E-10
i -4.502045863651668E-16 1.297663427702328E-15 -4.975990727408655E-13 1.537684026000563E-10 -1.538242955604052E-10 1.456158566477458E-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 13.9   n/a MPO502212  
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1984-Dec-04 08:49 < 00:01 Amphi 0.0313540147784633 0.0313529885097973 0.0313550412040775 4.0100377479115 4.01003770218885 2446038.867052539 0.349242882437832 158.795470270455 34.6614895001396 75.9531629014202 131402.786693445 T 41 CATAB v2.0f-lin.ifort 2020-Dec-17 19:59:11 2020-Dec-17 19:59

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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