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70658 (1999 TZ260)
Classification: Main-belt Asteroid          SPK-ID: 2070658
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 .2243760064187322 3.8487e-08  
a 2.365534848149002 1.2251e-08 au
q 1.834765585876987 9.1079e-08 au
i 2.687400066704634 5.1282e-06 deg
node 159.5262744255566 8.201e-05 deg
peri 151.9306865433603 8.3007e-05 deg
M 261.5584019698541 1.7624e-05 deg
tp 2459363.886347421428
(2021-May-29.38634742)
6.7311e-05 TDB
period 1328.900461689512
3.64
1.0323e-05
2.826e-08
d
yr
n .270900650860118 2.1045e-09 deg/d
Q 2.896304110421017 1.5e-08 au
  Orbit Determination Parameters
   # obs. used (total)      728  
   data-arc span      7618 days (20.86 yr)  
   first obs. used      1999-07-13  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57858  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:59:44  

Additional Information
 Earth MOID = .821081 au 
 Jupiter MOID = 2.38745 au 
 T_jup = 3.512 
[ 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 15.9   n/a MPO267921  
diameter diameter 1.473 km 0.309 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.427   0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70658 (1999 TZ260)          Discovered 1999-Oct-13 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TZ260 = 2000 YY20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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