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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03447850159646979 3.2874e-08  
a 2.741578857067372 1.082e-08 au
q 2.647053326067127 9.379e-08 au
i 5.127192249741037 3.2237e-06 deg
node 275.3117157570578 4.6193e-05 deg
peri 195.4700130555927 7.594e-05 deg
M 338.0582345916026 6.0691e-05 deg
tp 2459497.557513156552
(2021-Oct-10.05751316)
0.00027955 TDB
period 1658.057319418577
4.54
9.8154e-06
2.687e-08
d
yr
n .2171215649687187 1.2853e-09 deg/d
Q 2.836104388067617 1.1193e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2674  
   data-arc span      16588 days (45.42 yr)  
   first obs. used      1975-11-07  
   last obs. used      2021-04-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43483  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 15:02:19  

Additional Information
 Earth MOID = 1.6645 au 
 Jupiter MOID = 2.21913 au 
 T_jup = 3.343 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457226.5 (2015-Jul-23.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03266840437416245 3.2469e-08  
q 2.652949165120408 9.2478e-08 au
tp 2457825.130047459210
(2017-Mar-12.63004746)
0.00029791 TDB
node 275.3981087210415 4.6298e-05 deg
peri 192.3867516449941 7.9239e-05 deg
i 5.11978912628204 3.2203e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2674  
   data-arc span      16588 days (45.42 yr)  
   first obs. used      1975-11-07  
   last obs. used      2021-04-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43483  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 15:02:19  

Additional Information
 Jupiter MOID = 2.21913 au 
 T_jup = 3.343 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.054215015400062E-15 -2.984781732389016E-15 4.278657579544597E-13 -1.335296826758562E-15 1.400269834005407E-13 -1.549976956573767E-17
q -2.984781732389016E-15 8.552178055154971E-15 -1.142257344370533E-12 5.613472175264383E-15 -3.916126026503878E-13 8.300158091571266E-17
tp 4.278657579544597E-13 -1.142257344370533E-12 8.874809549759554E-8 5.418709652104471E-11 1.917543614437257E-8 1.001877514888588E-11
node -1.335296826758562E-15 5.613472175264383E-15 5.418709652104471E-11 2.14351806063963E-9 -2.123060443177033E-9 -1.709089010072831E-12
peri 1.400269834005407E-13 -3.916126026503878E-13 1.917543614437257E-8 -2.123060443177033E-9 6.278750924359971E-9 3.861847777240038E-12
i -1.549976956573767E-17 8.300158091571266E-17 1.001877514888588E-11 -1.709089010072831E-12 3.861847777240038E-12 1.037009859818365E-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 12.98   n/a E2021B10  
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. 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:
[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

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 ]
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