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1260 Walhalla (1933 BW)
Classification: Main-belt Asteroid          SPK-ID: 2001260
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03763456955421725 4.267e-08  
a 2.61303984229509 1.0913e-08 au
q 2.514699212602295 1.1523e-07 au
i 8.017012639777274 4.284e-06 deg
node 304.5279431715808 3.0859e-05 deg
peri 18.97907692935391 6.2782e-05 deg
M 43.67907360256334 5.465e-05 deg
tp 2458813.307522435720
(2019-Nov-25.80752244)		 0.00023417 TDB
period 1542.827866184096
4.22		 9.6654e-06
2.646e-08		 d
yr
n .23333776106235 1.4618e-09 deg/d
Q 2.711380471987886 1.1324e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1899  
   data-arc span      31736 days (86.89 yr)  
   first obs. used      1933-01-29  
   last obs. used      2019-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44675  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:49:51  

Additional Information
 Earth MOID = 1.50259 au 
 Jupiter MOID = 2.45954 au 
 T_jup = 3.394 
[ 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 12.4   n/a MPO439075  
diameter diameter 13.328 km 0.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.120   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1260 Walhalla (1933 BW)          Discovered 1933-Jan-29 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1933 BW = 1957 XD 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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