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24630 (1981 EZ9)
Classification: Main-belt Asteroid          SPK-ID: 2024630
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1553018534994011 3.5656e-08  
a 2.863124203991219 1.61e-08 au
q 2.418475708312386 1.0776e-07 au
i 14.50042789443905 5.6739e-06 deg
node 193.1766977290492 1.4845e-05 deg
peri 108.1769477494754 2.4712e-05 deg
M 324.2494380647768 2.1633e-05 deg
tp 2459376.227237251731
(2021-Jun-10.72723725)
0.00010694 TDB
period 1769.53317615672
4.84
1.4925e-05
4.086e-08
d
yr
n .2034434871585117 1.716e-09 deg/d
Q 3.307772699670053 1.86e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1029  
   data-arc span      24390 days (66.78 yr)  
   first obs. used      1953-10-02  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52188  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:45:33  

Additional Information
 Earth MOID = 1.4492 au 
 Jupiter MOID = 2.10882 au 
 T_jup = 3.236 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.35   n/a E2021B10  
diameter diameter 5.389 km 0.398 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.139   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24630 (1981 EZ9)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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