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74387 (1998 XW24)
Classification: Main-belt Asteroid          SPK-ID: 2074387
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1656980779060718 6.8905e-08  
a 2.951864223150993 1.7653e-08 au
q 2.462745995135174 2.0663e-07 au
i 3.409798080593537 4.4684e-06 deg
node 139.2423737625005 7.6392e-05 deg
peri 221.6809558908 7.7316e-05 deg
M 130.1569164548328 1.2025e-05 deg
tp 2458330.757678241594
(2018-Jul-31.25767824)
6.1531e-05 TDB
period 1852.435063769319
5.07
1.6617e-05
4.549e-08
d
yr
n .1943387960209925 1.7433e-09 deg/d
Q 3.440982451166812 2.0578e-08 au
  Orbit Determination Parameters
   # obs. used (total)      862  
   data-arc span      9213 days (25.22 yr)  
   first obs. used      1995-01-29  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51766  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:43:53  

Additional Information
 Earth MOID = 1.46087 au 
 Jupiter MOID = 2.01202 au 
 T_jup = 3.246 
[ 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 15.1   n/a MPO417339  
diameter diameter 5.412 km 0.730 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74387 (1998 XW24)          Discovered 1998-Dec-12 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XW24 = 2000 CE130 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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