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26364 (1999 AH8)
Classification: Main-belt Asteroid          SPK-ID: 2026364
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08351157859278431 3.8106e-08  
a 3.177262631159491 2.1342e-08 au
q 2.911924413227498 1.188e-07 au
i 17.5772228756087 3.8638e-06 deg
node 121.5878187980155 1.4147e-05 deg
peri 134.0941434902647 2.9075e-05 deg
M 173.9821619692676 2.7543e-05 deg
tp 2458000.775531475428
(2017-Sep-04.27553148)
0.00015447 TDB
period 2068.607520421657
5.66
2.0843e-05
5.707e-08
d
yr
n .1740301127430006 1.7535e-09 deg/d
Q 3.442600849091483 2.3125e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2163  
   data-arc span      10171 days (27.85 yr)  
   first obs. used      1992-12-25  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43441  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:29:21  

Additional Information
 Earth MOID = 1.92204 au 
 Jupiter MOID = 1.82671 au 
 T_jup = 3.122 
[ 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 13.1   n/a MPO452538  
diameter diameter 14.624 km 0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 33.4134 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.063   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26364 (1999 AH8)          Discovered 1999-Jan-13 by Kobayashi, T. at Oizumi
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 AH8 = 2000 HB33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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