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9771 (1993 FU17)
Classification: Main-belt Asteroid          SPK-ID: 2009771
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1351505010173647 1.1754e-08  
a 2.246660630049386 5.6433e-09 au
q 1.943023320282223 2.5779e-08 au
i 7.34350389035175 6.3478e-07 deg
node 46.80412036540183 6.3673e-06 deg
peri 12.73258450894417 8.6862e-06 deg
M 199.754882114368 5.3114e-06 deg
tp 2459748.003557458789
(2022-Jun-17.50355746)
1.904e-05 TDB
period 1229.998662585382
3.37
4.6344e-06
1.269e-08
d
yr
n .2926832450722362 1.1028e-09 deg/d
Q 2.55029793981655 6.406e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1772  
   data-arc span      10533 days (28.84 yr)  
   first obs. used      1991-09-12  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47684  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 21:36:29  

Additional Information
 Earth MOID = .955145 au 
 Jupiter MOID = 2.76856 au 
 T_jup = 3.607 
[ 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 14.45   n/a E2021B10  
diameter diameter 3.066 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.86125 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.393   0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9771 (1993 FU17)          Discovered 1993-Mar-17 by UESAC at La Silla
Reference: 19981208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 FU17 = 1991 SU2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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