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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2112900725954487 6.2317e-08  
a 2.447316370262864 1.141e-08 au
q 1.930222716725994 1.5213e-07 au
i 25.04211112579238 7.2919e-06 deg
node 36.66357602700997 9.7637e-06 deg
peri 350.6948982788098 1.4081e-05 deg
M 345.0986339348452 9.7168e-06 deg
tp 2459058.383819772244
(2020-Jul-27.88381977)
3.7857e-05 TDB
period 1398.407033750775
3.83
9.7799e-06
2.678e-08
d
yr
n .2574357760733055 1.8004e-09 deg/d
Q 2.964410023799734 1.3821e-08 au
  Orbit Determination Parameters
   # obs. used (total)      941  
   data-arc span      9791 days (26.81 yr)  
   first obs. used      1993-10-10  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54384  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:09:47  

Additional Information
 Earth MOID = .938807 au 
 Jupiter MOID = 2.48379 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 14.2   n/a MPO436582  
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. 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 0.343   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

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