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JPL Small-Body Database Browser
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24503 Kero (2001 AJ42)
Classification: Main-belt Asteroid          SPK-ID: 2024503
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1136645467208731 3.2443e-08  
a 2.599334593420154 1.5532e-08 au
q 2.303882405083168 8.8332e-08 au
i 15.25670951713456 5.0939e-06 deg
node 37.18050737561745 1.4356e-05 deg
peri 257.3471422278405 3.0566e-05 deg
M 92.12320112735583 2.4853e-05 deg
tp 2458608.795801422604
(2019-May-05.29580142)
0.00010691 TDB
period 1530.70572626887
4.19
1.372e-05
3.756e-08
d
yr
n .2351856361558849 2.108e-09 deg/d
Q 2.894786781757141 1.7298e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1794  
   data-arc span      23634 days (64.71 yr)  
   first obs. used      1955-04-24  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48054  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 02:09:04  

Additional Information
 Earth MOID = 1.34424 au 
 Jupiter MOID = 2.3169 au 
 T_jup = 3.357 
[ 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 13.5   n/a MPO502342  
diameter diameter 6.124 km 0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.226   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

24503 Kero           Discovered 2001 Jan. 3 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Johan Kero (b. 1978) is a scientist at the Swedish Institute of Space Physics whose research includes the radar detection of meteors. By studying meteor stream rates and radiant directions, his work contributes toward identifying their asteroid and comet sources.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-07-12Last Updated: 2014-08-13

[ show close-approach data ]
Alternate Designations
 2001 AJ42 = 1986 VB7 = 1989 JE = 1999 XL183 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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