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859 Bouzareah (A916 TD)
Classification: Outer Main-belt Asteroid          SPK-ID: 2000859
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 77 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1092211428388142 4.0861e-08  
a 3.223640527420622 1.5277e-08 au
q 2.871550824914224 1.3413e-07 au
i 13.50387503082313 4.7295e-06 deg
node 35.68329161754668 1.5494e-05 deg
peri 21.73969236222644 2.3316e-05 deg
M 315.9044246766219 1.8022e-05 deg
tp 2459259.446979772371
(2021-Feb-13.94697977)
0.00010591 TDB
period 2114.06500616924
5.79
1.5028e-05
4.114e-08
d
yr
n .1702880464647266 1.2105e-09 deg/d
Q 3.57573022992702 1.6945e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2426  
   data-arc span      37886 days (103.73 yr)  
   first obs. used      1916-09-21  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42655  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:21:39  

Additional Information
 Earth MOID = 1.88705 au 
 Jupiter MOID = 1.86171 au 
 T_jup = 3.136 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455324.5 (2010-May-08.0) TDB
Reference: JPL 77 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1057715915050641 4.0362e-08  
q 2.886185602061398 1.3141e-07 au
tp 2454995.445843132873
(2009-Jun-12.94584313)
0.00011308 TDB
node 35.85115608404089 1.5483e-05 deg
peri 17.37145735846589 2.4025e-05 deg
i 13.51016524386545 4.7284e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2426  
   data-arc span      37886 days (103.73 yr)  
   first obs. used      1916-09-21  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42655  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:21:39  

Additional Information
 Jupiter MOID = 1.86171 au 
 T_jup = 3.136 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.629110873614358E-15 -5.276914138128278E-15 -2.490379015002446E-13 -1.001491335902645E-15 -7.938886757691204E-14 -5.808738015328375E-16
q -5.276914138128278E-15 1.72682061420944E-14 5.597176676246765E-13 -4.152876102113856E-16 2.230165908463863E-13 3.439778490502891E-15
tp -2.490379015002446E-13 5.597176676246765E-13 1.278721492687016E-8 4.194432849430114E-12 2.086266740745333E-9 -5.264744373545674E-12
node -1.001491335902645E-15 -4.152876102113856E-16 4.194432849430114E-12 2.39724958203026E-10 -2.328177557803483E-10 -5.369439043392861E-12
peri -7.938886757691204E-14 2.230165908463863E-13 2.086266740745333E-9 -2.328177557803483E-10 5.772204141283543E-10 4.56180735477497E-12
i -5.808738015328375E-16 3.439778490502891E-15 -5.264744373545674E-12 -5.369439043392861E-12 4.56180735477497E-12 2.235794128007971E-11

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 9.7   n/a MPO347520  
diameter diameter 65.417 km 0.487 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 23.2 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.031   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

859 Bouzareah (A916 TD)          Discovered 1916-Oct-02 by Sy, F. at Algiers
Prediscovery observation Sept. 20 by F. Gonnessiat, Algiers.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A916 TD = 1928 YA = A916 UN 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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