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541 Deborah (A904 PF)
Classification: Main-belt Asteroid          SPK-ID: 2000541
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 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04986208744613034 3.3085e-08  
a 2.815515240152203 9.3386e-09 au
q 2.675127773041822 9.3403e-08 au
i 6.002420173782787 3.7233e-06 deg
node 267.6299027780942 3.427e-05 deg
peri 358.7930169009703 5.149e-05 deg
M 238.7176252824013 3.9893e-05 deg
tp 2459581.840315138857
(2022-Jan-02.34031514)
0.00019219 TDB
period 1725.580604249337
4.72
8.5852e-06
2.35e-08
d
yr
n .2086254325723645 1.038e-09 deg/d
Q 2.955902707262585 9.8043e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3336  
   data-arc span      42316 days (115.85 yr)  
   first obs. used      1904-08-04  
   last obs. used      2020-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4364  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:15:52  

Additional Information
 Earth MOID = 1.65917 au 
 Jupiter MOID = 2.09844 au 
 T_jup = 3.309 
[ 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 10.1   n/a MPO298957  
diameter diameter 60.147 km 0.714 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 29.368 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Alkema, M.S. (2014) Minor Planet Bull. 41, 40.]
geometric albedo albedo 0.055   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B B   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)

541 Deborah (A904 PF)          Discovered 1904-Aug-04 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A904 PF = 1957 WU1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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