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70644 (1999 TU242)
Classification: Main-belt Asteroid          SPK-ID: 2070644
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06754985557476405 4.9232e-08  
a 2.576941524011067 1.2989e-08 au
q 2.402869496239507 1.325e-07 au
i 8.363284836037414 4.6187e-06 deg
node 145.9024439380949 2.5798e-05 deg
peri 214.2404837880153 3.8504e-05 deg
M 28.52155806868711 2.8234e-05 deg
tp 2458880.791216367915
(2020-Feb-01.29121637)
0.00011845 TDB
period 1510.968019480792
4.14
1.1424e-05
3.128e-08
d
yr
n .2382578554665276 1.8015e-09 deg/d
Q 2.751013551782627 1.3867e-08 au
  Orbit Determination Parameters
   # obs. used (total)      973  
   data-arc span      8686 days (23.78 yr)  
   first obs. used      1997-02-02  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56996  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:54:54  

Additional Information
 Earth MOID = 1.4025 au 
 Jupiter MOID = 2.56432 au 
 T_jup = 3.409 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO502590  
diameter diameter 4.563 km 0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70644 (1999 TU242)          Discovered 1999-Oct-04 by CSS at Catalina
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TU242 = 1997 CK10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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