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79455 (1997 WH46)
Classification: Main-belt Asteroid          SPK-ID: 2079455
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1942891385379498 3.4625e-08  
a 2.976426044229744 1.6631e-08 au
q 2.398138792174429 1.053e-07 au
i 2.418833294174472 4.7353e-06 deg
node 161.6228532891248 8.1733e-05 deg
peri 239.3332748951198 8.2653e-05 deg
M 225.493625893282 1.3304e-05 deg
tp 2460097.279575577692
(2023-Jun-01.77957558)
7.3079e-05 TDB
period 1875.60365732414
5.14
1.572e-05
4.304e-08
d
yr
n .1919382053848198 1.6087e-09 deg/d
Q 3.55471329628506 1.9862e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1016  
   data-arc span      10950 days (29.98 yr)  
   first obs. used      1991-08-05  
   last obs. used      2021-07-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55141  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:02:13  

Additional Information
 Earth MOID = 1.4069 au 
 Jupiter MOID = 1.86514 au 
 T_jup = 3.231 
[ 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 14.91   n/a MPCxxxxx  
diameter diameter 5.671 km 0.633 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.308 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.057   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79455 (1997 WH46)          Discovered 1997-Nov-26 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

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Alternate Designations
 1997 WH46 = 1991 PP28 = 1997 XD14 = 2002 RZ108 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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