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24221 (1999 XT73)
Classification: Outer Main-belt Asteroid          SPK-ID: 2024221
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1120635300875252 3.9147e-08  
a 3.21235075941141 2.1528e-08 au
q 2.852363393432424 1.2257e-07 au
i .3969296096907913 4.0192e-06 deg
node 172.8561882122936 0.00065586 deg
peri 347.2533536281609 0.00065614 deg
M 162.5172759040336 2.0518e-05 deg
tp 2458251.142249031253
(2018-May-12.64224903)
0.00011746 TDB
period 2102.968982513362
5.76
2.114e-05
5.788e-08
d
yr
n .171186547682575 1.7208e-09 deg/d
Q 3.572338125390395 2.394e-08 au
  Orbit Determination Parameters
   # obs. used (total)      732  
   data-arc span      9777 days (26.77 yr)  
   first obs. used      1994-01-10  
   last obs. used      2020-10-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53024  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:37:56  

Additional Information
 Earth MOID = 1.86078 au 
 Jupiter MOID = 1.40879 au 
 T_jup = 3.181 
[ 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 14.84   n/a MPCxxxxx  
diameter diameter 6.751 km 0.348 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.047   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

24221 (1999 XT73)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XT73 = 1998 RB11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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