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21332 (1997 BX)
Classification: Main-belt Asteroid          SPK-ID: 2021332
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1554352735658498 3.8146e-08  
a 2.3933429022014 7.8906e-09 au
q 2.021332993460841 9.1071e-08 au
i 3.475809178471437 2.9669e-06 deg
node 115.344820741244 7.5495e-05 deg
peri 303.6059196133707 7.6455e-05 deg
M 211.4736463133556 1.2457e-05 deg
tp 2459758.464841743898
(2022-Jun-27.96484174)
4.7996e-05 TDB
period 1352.402035342402
3.70
6.6881e-06
1.831e-08
d
yr
n .2661930332786396 1.3164e-09 deg/d
Q 2.76535281094196 9.1171e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1397  
   data-arc span      10069 days (27.57 yr)  
   first obs. used      1992-11-25  
   last obs. used      2020-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52152  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:43:33  

Additional Information
 Earth MOID = 1.03558 au 
 Jupiter MOID = 2.55472 au 
 T_jup = 3.512 
[ 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 15.05   n/a E2021B10  
diameter diameter 5.791 km 0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21332 (1997 BX)          Discovered 1997-Jan-18 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 BX = 1992 WN4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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