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70533 (1999 TD121)
Classification: Main-belt Asteroid          SPK-ID: 2070533
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 .09023691419991799 2.7631e-08  
a 2.413433427988538 8.2861e-09 au
q 2.195652642819923 6.6305e-08 au
i 6.949399480862133 4.9787e-06 deg
node 185.756932548869 2.5526e-05 deg
peri 275.2607421538223 4.2994e-05 deg
M 106.4445661827875 3.2641e-05 deg
tp 2458595.577035162290
(2019-Apr-22.07703516)
0.00012392 TDB
period 1369.466498564656
3.75
7.0527e-06
1.931e-08
d
yr
n .2628760910743838 1.3538e-09 deg/d
Q 2.631214213157154 9.0338e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1314  
   data-arc span      8036 days (22.00 yr)  
   first obs. used      1998-06-19  
   last obs. used      2020-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52211  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:36:14  

Additional Information
 Earth MOID = 1.22541 au 
 Jupiter MOID = 2.48938 au 
 T_jup = 3.503 
[ 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 15.1   n/a MPO359236  
diameter diameter 2.808 km 0.805 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.204   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70533 (1999 TD121)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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