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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2137097156937899 1.5372e-08  
a 2.737013084075687 7.7142e-09 au
q 2.152086796027689 4.0917e-08 au
i 6.799386685495921 1.9786e-07 deg
node 274.2827202266057 5.0393e-06 deg
peri 97.42964250656647 7.0342e-06 deg
M 204.5581664664411 9.0128e-06 deg
tp 2459914.633073261897
(2022-Dec-01.13307326)
4.3331e-05 TDB
period 1653.91709895637
4.53
6.9923e-06
1.914e-08
d
yr
n .2176650814162099 9.2022e-10 deg/d
Q 3.321939372123686 9.3628e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2997  
   data-arc span      42585 days (116.59 yr)  
   first obs. used      1904-08-02  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42645  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:02:42  

Additional Information
 Earth MOID = 1.16376 au 
 Jupiter MOID = 2.22379 au 
 T_jup = 3.308 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456525.5 (2013-Aug-21.0) TDB
Reference: JPL 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2098407681255157 1.5242e-08  
q 2.164737284700157 4.0342e-08 au
tp 2456601.407895729507
(2013-Nov-04.90789573)
3.6423e-05 TDB
node 274.5742316248906 5.0209e-06 deg
peri 96.77719076166365 7.1286e-06 deg
i 6.809026125616951 1.9839e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2997  
   data-arc span      42585 days (116.59 yr)  
   first obs. used      1904-08-02  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42645  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:02:42  

Additional Information
 Jupiter MOID = 2.22379 au 
 T_jup = 3.308 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.323191641082555E-16 -6.082188462141474E-16 4.240280187573118E-13 9.047229540086746E-15 5.346782231597189E-14 1.402163300385225E-16
q -6.082188462141474E-16 1.627489053987518E-15 -1.061862815892813E-12 -2.205190404618317E-14 -1.313317812230463E-13 -3.763262447437547E-16
tp 4.240280187573118E-13 -1.061862815892813E-12 1.32665850776412E-9 2.728877925552645E-11 1.802111410087497E-10 -6.427425764174955E-14
node 9.047229540086746E-15 -2.205190404618317E-14 2.728877925552645E-11 2.520904519306702E-11 -2.14816916089447E-11 1.49794209458674E-13
peri 5.346782231597189E-14 -1.313317812230463E-13 1.802111410087497E-10 -2.14816916089447E-11 5.081732887538431E-11 -1.818278382743797E-13
i 1.402163300385225E-16 -3.763262447437547E-16 -6.427425764174955E-14 1.49794209458674E-13 -1.818278382743797E-13 3.935719506604271E-14

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 10.13   n/a E2021B10  
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. 2020-October); 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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