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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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1941118331615229 2.9413e-08  
a 2.418054597477947 6.8744e-09 au
q 1.948681586876855 7.0493e-08 au
i 13.34393919128498 4.1596e-06 deg
node 176.9159845794439 1.7236e-05 deg
peri 302.0386605810912 2.125e-05 deg
M 191.8123753038558 1.3519e-05 deg
tp 2459642.136582666470
(2022-Mar-03.63658267)
5.2307e-05 TDB
period 1373.401700495177
3.76
5.8568e-06
1.604e-08
d
yr
n .2621228733517678 1.1178e-09 deg/d
Q 2.88742760807904 8.2089e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2511  
   data-arc span      40742 days (111.55 yr)  
   first obs. used      1908-11-29  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44306  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:22:00  

Additional Information
 Earth MOID = .997375 au 
 Jupiter MOID = 2.26824 au 
 T_jup = 3.453 
[ 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 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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