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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08328231106578092 3.7595e-08  
a 3.177896452060852 2.1034e-08 au
q 2.913233891205479 1.1772e-07 au
i 17.57729681565661 3.8563e-06 deg
node 121.5873958512962 1.3676e-05 deg
peri 134.1445483856679 2.87e-05 deg
M 208.7193038883202 2.7649e-05 deg
tp 2460070.038976110111
(2023-May-05.53897611)
0.0001629 TDB
period 2069.226540103631
5.67
2.0544e-05
5.625e-08
d
yr
n .1739780507464255 1.7273e-09 deg/d
Q 3.442559012916226 2.2786e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2288  
   data-arc span      10252 days (28.07 yr)  
   first obs. used      1992-12-25  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42584  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:19:05  

Additional Information
 Earth MOID = 1.92149 au 
 Jupiter MOID = 1.82604 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 13.13   n/a E2021B10  
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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