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120506 (1993 TO1)
Classification: Main-belt Asteroid          SPK-ID: 2120506
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2113952349465362 5.7335e-08  
a 2.447678775278626 1.0277e-08 au
q 1.930251145504951 1.3838e-07 au
i 25.04078093762653 6.6993e-06 deg
node 36.66292522947547 9.0959e-06 deg
peri 350.7169189215051 1.3683e-05 deg
M 36.56381193257515 9.3897e-06 deg
tp 2459058.437639870498
(2020-Jul-27.93763987)
3.6302e-05 TDB
period 1398.717664912213
3.83
8.8087e-06
2.412e-08
d
yr
n .2573786040105489 1.6209e-09 deg/d
Q 2.965106405052301 1.2449e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1201  
   data-arc span      9963 days (27.28 yr)  
   first obs. used      1993-10-10  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4974  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:25:11  

Additional Information
 Earth MOID = .937715 au 
 Jupiter MOID = 2.48423 au 
 T_jup = 3.341 
[ 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 14.30   n/a E2021B55  
diameter diameter 3.594 km 0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.446 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.343   0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120506 (1993 TO1)          Discovered 1993-Oct-15 by Endate, K., Watanabe, K. at Kitami
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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Alternate Designations
 1993 TO1 = 2002 BY25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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