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JPL Small-Body Database Browser
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219 Thusnelda
Classification: Main-belt Asteroid          SPK-ID: 2000219
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2233197747409502 3.5574e-08  
a 2.353850192760853 5.084e-09 au
q 1.828188897939557 8.329e-08 au
i 10.86276121567952 3.9307e-06 deg
node 200.8149757748285 2.1203e-05 deg
peri 142.7519292377475 2.2806e-05 deg
M 150.9151534357249 9.4397e-06 deg
tp 2458047.535813197430
(2017-Oct-21.03581320)
3.4045e-05 TDB
period 1319.066394043116
3.61
4.2735e-06
1.17e-08
d
yr
n .2729203030459685 8.8421e-10 deg/d
Q 2.879511487582148 6.2194e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3023  
   data-arc span      44068 days (120.65 yr)  
   first obs. used      1898-09-15  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42682  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:04:46  

Additional Information
 Earth MOID = .833756 au 
 Jupiter MOID = 2.59843 au 
 T_jup = 3.498 
[ 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 9.32   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
diameter diameter 37.674 km 0.509 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 59.74 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Marciniak, A.; Pilcher, F.; Oszkiewicz, D.; Santana-Ros, T.; et al. (2015) Planet. Space Sci. 118, 256-266.]
geometric albedo albedo 0.189   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.905   0.005 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=8.00, mean=8.81, max.=10.81) deg.
U-B UB 0.482   0.014 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=7; phase (min.=8.00, mean=8.98, max.=10.81) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

219 Thusnelda          Discovered 1880-Sep-30 by Palisa, J. at Pola
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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