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17992 Japellegrino (1999 JR65)
Classification: Main-belt Asteroid          SPK-ID: 2017992
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06097117818290929 4.4232e-08  
a 2.364235649631881 1.019e-08 au
q 2.220085416571789 1.0466e-07 au
i 5.408796979242549 4.6101e-06 deg
node 198.4343320968381 3.7077e-05 deg
peri 345.2071793269901 4.6431e-05 deg
M 313.2521158317482 2.819e-05 deg
tp 2459172.922535769928
(2020-Nov-19.42253577)
0.00010408 TDB
period 1327.805824404121
3.64
8.584e-06
2.35e-08
d
yr
n .2711239801659682 1.7528e-09 deg/d
Q 2.508385882691972 1.0811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1243  
   data-arc span      15667 days (42.89 yr)  
   first obs. used      1977-03-12  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52196  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:17:05  

Additional Information
 Earth MOID = 1.22178 au 
 Jupiter MOID = 2.45087 au 
 T_jup = 3.541 
[ 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 15.2   n/a MPO299092  
diameter diameter 2.021 km 0.353 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.328   0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17992 Japellegrino           Discovered 1999 May 12 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Jason Scott Pellegrino (b. 1986) was awarded first place in the 2003 Intel International Science and Engineering Fair for his botany team project. He attends the Manhasset High School, Manhasset, New York, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040614/MPCPages.arcLast Updated: 2009-12-11

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Alternate Designations
 1999 JR65 = 1977 ER7 = 1997 WN51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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