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6255 Kuma (1994 XT)
Classification: Main-belt Asteroid          SPK-ID: 2006255
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03420938700783149 4.1383e-08  
a 2.740756485077775 1.3466e-08 au
q 2.646996885785525 1.1197e-07 au
i 5.127588607376422 4.2249e-06 deg
node 275.3078278943682 5.1365e-05 deg
peri 195.8418828083008 8.4062e-05 deg
M 251.6719435127177 6.8294e-05 deg
tp 2459499.203657366324
(2021-Oct-11.70365737)
0.00031547 TDB
period 1657.311341803255
4.54
1.2215e-05
3.344e-08
d
yr
n .2172192942385214 1.6009e-09 deg/d
Q 2.834516084370024 1.3927e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2053  
   data-arc span      16093 days (44.06 yr)  
   first obs. used      1975-11-07  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47403  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:58:29  

Additional Information
 Earth MOID = 1.66412 au 
 Jupiter MOID = 2.22125 au 
 T_jup = 3.343 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456496.5 (2013-Jul-23.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03296396900175406 4.0217e-08  
q 2.650863364454112 1.0862e-07 au
tp 2456162.709694535992
(2012-Aug-23.20969454)
0.00032959 TDB
node 275.4044461754405 5.1474e-05 deg
peri 191.550233677071 8.7719e-05 deg
i 5.120651618243563 4.2197e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2053  
   data-arc span      16093 days (44.06 yr)  
   first obs. used      1975-11-07  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47403  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:58:29  

Additional Information
 Jupiter MOID = 2.22125 au 
 T_jup = 3.343 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.617373624219158E-15 -4.337220523686837E-15 3.917806911918253E-12 -1.241917928120269E-15 8.565575146187875E-13 6.943718130059066E-16
q -4.337220523686837E-15 1.179785082403113E-14 -9.65096522524037E-12 4.96117711883299E-15 -2.110580233453283E-12 -1.690040812552591E-15
tp 3.917806911918253E-12 -9.65096522524037E-12 1.086282212048255E-7 -1.507259841735482E-11 2.34398880477857E-8 4.003385829914572E-12
node -1.241917928120269E-15 4.96117711883299E-15 -1.507259841735482E-11 2.649565439525887E-9 -2.641522245537034E-9 5.594947397211895E-11
peri 8.565575146187875E-13 -2.110580233453283E-12 2.34398880477857E-8 -2.641522245537034E-9 7.694608162379271E-9 -5.486722275734706E-11
i 6.943718130059066E-16 -1.690040812552591E-15 4.003385829914572E-12 5.594947397211895E-11 -5.486722275734706E-11 1.780549141049652E-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 12.9   n/a MPO347575  
diameter diameter 16.955 km 0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.70 h n/a LCDB (Rev. 2019-August); 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:
[Warner, B.D. (2007) Minor Planet Bull. 34, 8-10.]
geometric albedo albedo 0.060   0.001 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6255 Kuma (1994 XT)          Discovered 1994-Dec-05 by Nakamura, A. at Kuma Kogen
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1994 XT = 1975 VJ8 = 1981 DV3 = 1986 EB2 = 1988 SU4 = 1989 WP3 = 1992 OL1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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