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1502 Arenda (1938 WB)
Classification: Main-belt Asteroid          SPK-ID: 2001502
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0887066909003723 2.9876e-08  
a 2.732113359461001 8.6194e-09 au
q 2.489756624178516 8.3332e-08 au
i 4.094403532507167 3.9248e-06 deg
node 204.3448885070678 4.3808e-05 deg
peri 274.1318114862363 4.9173e-05 deg
M 336.8264766781242 2.2249e-05 deg
tp 2459106.678373373946
(2020-Sep-14.17837337)
0.000102 TDB
period 1649.477892666286
4.52
7.8057e-06
2.137e-08
d
yr
n .218250879020925 1.0328e-09 deg/d
Q 2.974470094743485 9.384e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3329  
   data-arc span      41645 days (114.02 yr)  
   first obs. used      1906-11-10  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42592  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:01:00  

Additional Information
 Earth MOID = 1.50997 au 
 Jupiter MOID = 2.10176 au 
 T_jup = 3.344 
[ 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 11.5   n/a MPO350811  
diameter diameter 35.518 km 0.185 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 45.8 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Fleenor, M.L. (2007) Minor Planet Bull. 34, 66-67.]
geometric albedo albedo 0.034   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B Xc   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)

1502 Arenda (1938 WB)          Discovered 1938-Nov-17 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1938 WB = 1926 CD = 1926 EH = 1929 WY = 1933 US1 = 1935 CD = 1937 PD = 1940 ES = 1963 KD = A906 VF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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