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66764 (1999 TD190)
Classification: Main-belt Asteroid          SPK-ID: 2066764
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05161124465703561 3.9125e-08  
a 2.643535818688616 1.5029e-08 au
q 2.507099644790641 1.0764e-07 au
i 9.64157995562436 4.4115e-06 deg
node 311.7352354361761 2.5674e-05 deg
peri 325.9553717640209 5.162e-05 deg
M 37.11342340231447 4.6428e-05 deg
tp 2458838.652967387314
(2019-Dec-21.15296739)
0.00020222 TDB
period 1569.91531363106
4.30
1.3388e-05
3.665e-08
d
yr
n .2293117322152591 1.9555e-09 deg/d
Q 2.779971992586591 1.5804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1427  
   data-arc span      10521 days (28.80 yr)  
   first obs. used      1990-09-17  
   last obs. used      2019-07-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49931  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:02:55  

Additional Information
 Earth MOID = 1.4965 au 
 Jupiter MOID = 2.36901 au 
 T_jup = 3.372 
[ 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 14.4   n/a MPO296619  
diameter diameter 3.877 km 0.175 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 12.80 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
geometric albedo albedo 0.245   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66764 (1999 TD190)          Discovered 1999-Oct-12 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TD190 = 2000 YY99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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