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152646 (1997 SM33)
Classification: Main-belt Asteroid          SPK-ID: 2152646
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2163039381443599 4.142e-08  
a 2.445286602201389 9.4515e-09 au
q 1.916361480253588 9.8814e-08 au
i 8.763871737088284 4.3969e-06 deg
node 198.8832523797439 1.9829e-05 deg
peri 183.839656039053 2.1623e-05 deg
M 25.95275848027364 6.9081e-06 deg
tp 2459099.812837092050
(2020-Sep-07.31283709)
2.6825e-05 TDB
period 1396.667667308397
3.82
8.0976e-06
2.217e-08
d
yr
n .257756378576285 1.4944e-09 deg/d
Q 2.97421172414919 1.1496e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1019  
   data-arc span      8542 days (23.39 yr)  
   first obs. used      1997-09-23  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49548  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:28:03  

Additional Information
 Earth MOID = .91834 au 
 Jupiter MOID = 2.48342 au 
 T_jup = 3.451 
[ 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 15.84   n/a E2021B55  
diameter diameter 3.257 km 0.296 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.096   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

152646 (1997 SM33)          Discovered 1997-Sep-23 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 1997 SM33 = 2001 WH4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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