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JPL Small-Body Database Browser
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539 Pamina (A904 PD)
Classification: Main-belt Asteroid          SPK-ID: 2000539
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2134809011544174 3.6324e-08  
a 2.737525680839351 8.162e-09 au
q 2.153116231560407 9.8871e-08 au
i 6.799302085349712 4.4113e-06 deg
node 274.2872200756951 3.4007e-05 deg
peri 97.43149397393869 3.5454e-05 deg
M 161.020930267958 1.1366e-05 deg
tp 2458260.527533457869
(2018-May-22.02753346)
5.1099e-05 TDB
period 1654.381747216728
4.53
7.3989e-06
2.026e-08
d
yr
n .2176039481852667 9.7319e-10 deg/d
Q 3.321935130118296 9.9044e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2538  
   data-arc span      42159 days (115.43 yr)  
   first obs. used      1904-08-02  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44327  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 17:31:42  

Additional Information
 Earth MOID = 1.16621 au 
 Jupiter MOID = 2.2227 au 
 T_jup = 3.308 
[ 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 10.1   n/a MPO452164  
diameter diameter 68.356 km 0.726 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 13.903 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pray, D. (2005) Minor Planet Bull. 32, 8-9.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.052   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B Ch   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)

539 Pamina (A904 PD)          Discovered 1904-Aug-02 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A904 PD = 1959 XK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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