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16930 Respighi (1998 FF74)
Classification: Outer Main-belt Asteroid          SPK-ID: 2016930
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1620143172112738 4.3362e-08  
a 3.236026790899524 1.7578e-08 au
q 2.711744119894548 1.4282e-07 au
i 3.102800474488314 3.9908e-06 deg
node 78.03286476754607 9.3533e-05 deg
peri 301.4171622903986 9.4373e-05 deg
M 88.59268992385522 1.3108e-05 deg
tp 2458477.246698681072
(2018-Dec-24.74669868)
7.6032e-05 TDB
period 2126.261079065529
5.82
1.7324e-05
4.743e-08
d
yr
n .1693112870966046 1.3795e-09 deg/d
Q 3.7603094619045 2.0425e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1537  
   data-arc span      8519 days (23.32 yr)  
   first obs. used      1997-01-14  
   last obs. used      2020-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:24:16  

Additional Information
 Earth MOID = 1.71588 au 
 Jupiter MOID = 1.70235 au 
 T_jup = 3.162 
[ 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 13.5   n/a MPO378735  
diameter diameter 10.735 km 0.324 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

16930 Respighi           Discovered 1998 Mar. 29 at Osservatorio San Vittore.
Italian astronomer Lorenzo Respighi (1824-1889) was professor of optics and astronomy and director successively of the observatories of Bologna and of Campidoglio in Rome. He compiled stellar catalogues, observed the planets and discovered three comets. He introduced the use of the objective prism in stellar spectroscopy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1998 FF74 = 1999 JJ125 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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