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JPL Small-Body Database Browser
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6260 Kelsey (1949 PN)
Classification: Main-belt Asteroid          SPK-ID: 2006260
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1717301763670176 4.5437e-08  
a 2.677002754452661 9.5961e-09 au
q 2.217280599295514 1.2385e-07 au
i 11.9373695219806 4.9043e-06 deg
node 325.5446566806616 1.5359e-05 deg
peri 7.203955273891154 1.8393e-05 deg
M 54.38791527178234 9.0043e-06 deg
tp 2458758.802829920367
(2019-Oct-02.30282992)
3.9992e-05 TDB
period 1599.821960335573
4.38
8.6022e-06
2.355e-08
d
yr
n .2250250396140878 1.21e-09 deg/d
Q 3.136724909609808 1.1244e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2449  
   data-arc span      25726 days (70.43 yr)  
   first obs. used      1949-08-02  
   last obs. used      2020-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46354  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:58:30  

Additional Information
 Earth MOID = 1.20714 au 
 Jupiter MOID = 2.22889 au 
 T_jup = 3.326 
[ show covariance matrix ]

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 12.1   n/a MPO358691  
diameter diameter 11.196 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.11 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:
[Angeli, C.A.; Guimaraes, T.A.; Lazzaro, D.; Duffard, R.; et al. (2001) Astron. J. 121, 2245-2252.]
geometric albedo albedo 0.140   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6260 Kelsey (1949 PN)          Discovered 1949-Aug-02 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1949 PN = 1949 QR = 1991 CF1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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