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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 
[ 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 10.13   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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2010-Apr-20 16:45 < 00:01 Europ 0.0288509335425366 0.0288499815338152 0.0288518855628716 5.79954790145846 5.7995478379374 2455307.198175448 0.332073455422157 62.8439736290954 33.8722058501711 -51.1005382753956 108099.609038547 T 48 CATAB v2.0f-lin.ifort 2021-Apr-12 11:04:19 2021-Apr-12 11:04
2037-Jun-30 10:17 < 00:01 Europ 0.0228000866962245 0.0227993983841007 0.0228007750091138 5.82366916356885 5.82366908352306 2465239.928806612 0.330284095308352 95.6794113746728 34.2193401913452 -88.3774710536683 99605.7942781751 T 48 CATAB v2.0f-lin.ifort 2021-Apr-12 11:04:19 2021-Apr-12 11:04
2171-Nov-17 23:22 00:07 Iris 0.0497052239358097 0.049702282917158 0.0497081654838395 1.34932186174518 1.34932177603045 2514322.473360382 7.39999957493281 300.551079863055 35.3452891958541 61.5770763855036 184517.935293811 T 48 CATAB v2.0f-lin.ifort 2021-Apr-12 11:04:19 2021-Apr-12 11:04

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