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JPL Small-Body Database Browser
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1045 Michela (A924 WN)
Classification: Main-belt Asteroid          SPK-ID: 2001045
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1598698855155744 2.6475e-08  
a 2.358474764549856 5.7172e-09 au
q 1.981425673949899 6.289e-08 au
i .2648102539654769 3.16e-06 deg
node 267.6791820551498 0.00078582 deg
peri 166.9150798739041 0.00078591 deg
M 8.901152383271741 1.1942e-05 deg
tp 2458567.789362164871
(2019-Mar-25.28936216)		 4.3862e-05 TDB
period 1322.955625698198
3.62		 4.8105e-06
1.317e-08		 d
yr
n .2721179705555186 9.8947e-10 deg/d
Q 2.735523855149813 6.6312e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2725  
   data-arc span      24132 days (66.07 yr)  
   first obs. used      1953-11-11  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45609  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:52:52  

Additional Information
 Earth MOID = .996277 au 
 Jupiter MOID = 2.5159 au 
 T_jup = 3.535 
[ 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 13.0   n/a MPO421637  
diameter diameter 6.104 km 0.265 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.328   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1045 Michela (A924 WN)          Discovered 1924-Nov-19 by Van Biesbroeck, G. at Williams Bay
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A924 WN = 1953 VB2 = 1964 XJ = 1976 AL 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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