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865 Zubaida (A917 CH)
Classification: Main-belt Asteroid          SPK-ID: 2000865
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1941118320226666 2.8992e-08  
a 2.418054597162821 6.7364e-09 au
q 1.948681589376715 6.9646e-08 au
i 13.34393927364386 3.9537e-06 deg
node 176.9159848880529 1.6382e-05 deg
peri 302.0386612421625 2.0147e-05 deg
M 191.8123746223126 1.3195e-05 deg
tp 2459642.136585141131
(2022-Mar-03.63658514)
5.1204e-05 TDB
period 1373.4017002267
3.76
5.7392e-06
1.571e-08
d
yr
n .2621228734030085 1.0954e-09 deg/d
Q 2.887427604948927 8.044e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2597  
   data-arc span      40789 days (111.67 yr)  
   first obs. used      1908-11-29  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43605  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:23:51  

Additional Information
 Earth MOID = .997375 au 
 Jupiter MOID = 2.26824 au 
 T_jup = 3.453 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456482.5 (2013-Jul-09.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1941946080446217 2.8946e-08  
q 1.947409842666475 6.953e-08 au
tp 2456894.915589865218
(2014-Aug-25.41558987)
4.816e-05 TDB
node 177.0910293014836 1.6391e-05 deg
peri 301.6351132637668 2.0171e-05 deg
i 13.33908769212513 3.9556e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2597  
   data-arc span      40789 days (111.67 yr)  
   first obs. used      1908-11-29  
   last obs. used      2020-08-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43605  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:23:51  

Additional Information
 Jupiter MOID = 2.26824 au 
 T_jup = 3.453 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.378822039026762E-16 -2.006845127103034E-15 1.949099455558269E-14 5.263266765239008E-15 -1.855131848838521E-14 1.42580670540149E-15
q -2.006845127103034E-15 4.834445249242627E-15 -2.39358198549971E-15 -1.260339474391023E-14 5.20762169124609E-14 -3.342645015116348E-15
tp 1.949099455558269E-14 -2.39358198549971E-15 2.319397303045397E-9 3.7413270948121E-12 5.808610213048479E-10 2.973957293232849E-13
node 5.263266765239008E-15 -1.260339474391023E-14 3.7413270948121E-12 2.686639230914069E-10 -2.599031986981509E-10 1.8205668703679E-11
peri -1.855131848838521E-14 5.20762169124609E-14 5.808610213048479E-10 -2.599031986981509E-10 4.068530327076451E-10 -1.769096756793067E-11
i 1.42580670540149E-15 -3.342645015116348E-15 2.973957293232849E-13 1.8205668703679E-11 -1.769096756793067E-11 1.564682248967065E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.7   n/a MPO337250  
diameter diameter 17.77 km 1.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 4
rotation period rot_per 11.3533 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Bembrick, C.; Crawford, G.; Bolt, G.; Allen, B. (2007) Minor Planet Bull. 34, 84.]
[Higgins, D.; Oey, J. (2007) Minor Planet Bull. 34, 79-80.]
geometric albedo albedo 0.0972   0.014 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 4

865 Zubaida (A917 CH)          Discovered 1917-Feb-15 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A917 CH = 1936 FK1 = 1970 GQ1 = A908 WF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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