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72278 (2001 AZ51)
Classification: Main-belt Asteroid          SPK-ID: 2072278
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .239068401014043 3.0298e-08  
a 2.353788270846922 7.494e-09 au
q 1.791071872609939 7.2256e-08 au
i 9.999715044401835 3.4499e-06 deg
node 129.0211966928762 2.0534e-05 deg
peri 341.5394289648191 2.1749e-05 deg
M 180.1767113191039 7.554e-06 deg
tp 2459859.359714349334
(2022-Oct-06.85971435)
2.9138e-05 TDB
period 1319.014344057866
3.61
6.2992e-06
1.725e-08
d
yr
n .2729310728285806 1.3034e-09 deg/d
Q 2.916504669083904 9.2855e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1161  
   data-arc span      9657 days (26.44 yr)  
   first obs. used      1994-02-13  
   last obs. used      2020-07-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47456  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:01:10  

Additional Information
 Earth MOID = .810274 au 
 Jupiter MOID = 2.21179 au 
 T_jup = 3.497 
[ 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 15.0   n/a MPO366079  
rotation period rot_per 4.58926 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.]

72278 (2001 AZ51)          Discovered 2001-Jan-12 by Uppsala-DLR Asteroid Survey at Kvistaberg
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 AZ51 = 1998 HR120 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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