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JPL Small-Body Database Browser
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26959 (1997 MR8)
Classification: Main-belt Asteroid          SPK-ID: 2026959
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2211072077454909 3.543e-08  
a 2.59662444969286 1.3042e-08 au
q 2.0224920680576 9.4328e-08 au
i 12.85608104799474 3.7841e-06 deg
node 131.2828460028139 1.8098e-05 deg
peri 90.6293413706159 2.0565e-05 deg
M 229.993684699815 1.2252e-05 deg
tp 2459552.417403372603
(2021-Dec-03.91740337)
5.439e-05 TDB
period 1528.312411249873
4.18
1.1515e-05
3.153e-08
d
yr
n .2355539334432202 1.7747e-09 deg/d
Q 3.17075683132812 1.5926e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1281  
   data-arc span      8776 days (24.03 yr)  
   first obs. used      1996-01-18  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49359  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:54:24  

Additional Information
 Earth MOID = 1.06317 au 
 Jupiter MOID = 1.97486 au 
 T_jup = 3.347 
[ 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 14.3   n/a MPO358881  
diameter diameter 8.127 km 0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.498 h n/a LCDB (Rev. 2019-August); 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 0.051   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26959 (1997 MR8)          Discovered 1997-Jun-30 by Spacewatch at Kitt Peak
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 MR8 = 1996 BE18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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