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26207 (1997 QU)
Classification: Main-belt Asteroid          SPK-ID: 2026207
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2913258940792784 5.1078e-08  
a 2.566618296987605 1.0108e-08 au
q 1.818895926857456 1.2953e-07 au
i 4.512329405940124 4.3005e-06 deg
node 196.5949752461558 5.1651e-05 deg
peri 184.9759066889835 5.2041e-05 deg
M 158.6072560662567 8.5091e-06 deg
tp 2458338.800347070582
(2018-Aug-08.30034707)
3.4627e-05 TDB
period 1501.897712391415
4.11
8.872e-06
2.429e-08
d
yr
n .2396967496719771 1.4159e-09 deg/d
Q 3.314340667117754 1.3052e-08 au
  Orbit Determination Parameters
   # obs. used (total)      974  
   data-arc span      11173 days (30.59 yr)  
   first obs. used      1989-10-09  
   last obs. used      2020-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5322  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:30:16  

Additional Information
 Earth MOID = .821929 au 
 Jupiter MOID = 2.14502 au 
 T_jup = 3.367 
[ 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 14.8   n/a MPO452536  
rotation period rot_per 9.17438 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.]

26207 (1997 QU)          Discovered 1997-Aug-25 by Williams, K. A. at Lake Clear
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 QU = 1989 TR1 = 1989 UM8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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