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JPL Small-Body Database Browser
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17622 (1995 WW2)
Classification: Main-belt Asteroid          SPK-ID: 2017622
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1720613138649484 5.2388e-08  
a 3.056796664366865 1.7072e-08 au
q 2.53084021407791 1.5719e-07 au
i 8.160028959962947 5.0243e-06 deg
node 219.0655025626766 3.0726e-05 deg
peri 164.6746204349786 3.2747e-05 deg
M 168.8709933246283 1.1833e-05 deg
tp 2457684.805068671398
(2016-Oct-23.30506867)
6.174e-05 TDB
period 1952.082881662189
5.34
1.6353e-05
4.477e-08
d
yr
n .1844183991273268 1.5449e-09 deg/d
Q 3.582753114655819 2.0009e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1384  
   data-arc span      12613 days (34.53 yr)  
   first obs. used      1984-10-28  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49585  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:31:55  

Additional Information
 Earth MOID = 1.53519 au 
 Jupiter MOID = 1.87554 au 
 T_jup = 3.197 
[ 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 MPO263504  
diameter diameter 6.517 km 0.270 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.917 h n/a LCDB (Rev. 2019-January); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.218   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17622 (1995 WW2)          Discovered 1995-Nov-20 by Kobayashi, T. at Oizumi
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 WW2 = 1984 UD1 = 1998 HE86 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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