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4684 Bendjoya (1978 GJ)
Classification: Main-belt Asteroid          SPK-ID: 2004684
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1095815155170488 1.4809e-08  
a 2.397867916322977 6.0388e-09 au
q 2.135105916042598 3.5367e-08 au
i 5.27374314387903 7.356e-07 deg
node 220.2367767210822 8.9055e-06 deg
peri 50.39706387532215 1.2488e-05 deg
M 131.7982877445691 8.9206e-06 deg
tp 2458703.972188142584
(2019-Aug-08.47218814)
3.3364e-05 TDB
period 1356.23926021782
3.71
5.1233e-06
1.403e-08
d
yr
n .2654398899661567 1.0027e-09 deg/d
Q 2.660629916603357 6.7005e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2848  
   data-arc span      15675 days (42.92 yr)  
   first obs. used      1978-04-10  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43122  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:38:26  

Additional Information
 Earth MOID = 1.12197 au 
 Jupiter MOID = 2.41043 au 
 T_jup = 3.514 
[ 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 13.24   n/a E2021B10  
diameter diameter 5.250 km 0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 12.169 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2015) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.233   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4684 Bendjoya (1978 GJ)          Discovered 1978-Apr-10 by Debehogne, H. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1978 GJ = 1952 HK3 = 1978 JK3 = 1978 JN3 = 1982 MC = 1986 PE4 = 1986 QF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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