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17479 (1991 PV9)
Classification: Main-belt Asteroid          SPK-ID: 2017479
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1773202354116072 2.0953e-08  
a 2.595881310490099 8.3673e-09 au
q 2.135579025413403 5.5774e-08 au
i 14.15360747665554 6.8545e-07 deg
node 169.2601239834054 3.4525e-06 deg
peri 109.0278159534126 4.7744e-06 deg
M 26.27177586825334 2.7932e-06 deg
tp 2459089.015984253336
(2020-Aug-27.51598425)
1.168e-05 TDB
period 1527.656366667511
4.18
7.3862e-06
2.022e-08
d
yr
n .2356550909320779 1.1394e-09 deg/d
Q 3.056183595566795 9.851e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2273  
   data-arc span      12145 days (33.25 yr)  
   first obs. used      1987-08-26  
   last obs. used      2020-11-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44294  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:04:10  

Additional Information
 Earth MOID = 1.16611 au 
 Jupiter MOID = 2.26169 au 
 T_jup = 3.353 
[ 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 13.4   n/a MPO473999  
diameter diameter 6.352 km 0.429 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.146 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:
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.230   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17479 (1991 PV9)          Discovered 1991-Aug-13 by Helin, E. F. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1991 PV9 = 1987 QV9 = 1999 DO6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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