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901 Brunsia (A918 QA)
Classification: Main-belt Asteroid          SPK-ID: 2000901
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2210264853506209 3.4613e-08  
a 2.223810319747431 5.5447e-09 au
q 1.732289340687216 7.7939e-08 au
i 3.446867853601872 3.0565e-06 deg
node 265.0774296705814 6.2357e-05 deg
peri 68.35337199625882 6.2887e-05 deg
M 246.5740247132044 1.1875e-05 deg
tp 2459382.141030825756
(2021-Jun-16.64103083)
4.0972e-05 TDB
period 1211.281373158857
3.32
4.5302e-06
1.24e-08
d
yr
n .2972059242198772 1.1116e-09 deg/d
Q 2.715331298807646 6.7702e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3055  
   data-arc span      41863 days (114.61 yr)  
   first obs. used      1905-11-04  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4045  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:22:27  

Additional Information
 Earth MOID = .725711 au 
 Jupiter MOID = 2.6626 au 
 T_jup = 3.613 
[ 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 11.6   n/a MPO502161  
diameter diameter 13.210 km 0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.1363 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Vander Haagen, G. (2009) Minor Planet Bull. 36, 136-138.]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 234-239.]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Klinglesmith III, D.K. (2017) Minor Planet Bull. 44, 345-348.]
geometric albedo albedo 0.234   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.901   0.021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=22.46 deg.
U-B UB 0.546   0.031 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=22.46 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

901 Brunsia (A918 QA)          Discovered 1918-Aug-30 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A918 QA = 1941 MH = 1948 VJ = 1970 EP1 = A905 VD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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