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70023 (1999 AT13)
Classification: Outer Main-belt Asteroid          SPK-ID: 2070023
[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07887698131550352 6.7697e-08  
a 3.224638474653719 2.7292e-08 au
q 2.970288725939204 2.2633e-07 au
i 11.28519479407605 4.0903e-06 deg
node 114.8214085156729 3.8382e-05 deg
peri 273.4643525188488 5.1375e-05 deg
M 327.1827798317256 3.1196e-05 deg
tp 2459193.305431404730
(2020-Dec-09.80543140)		 0.00018247 TDB
period 2115.046763552623
5.79		 2.6851e-05
7.351e-08		 d
yr
n .1702090025637596 2.1609e-09 deg/d
Q 3.478988223368234 2.9445e-08 au
   Orbit Determination Parameters
   # obs. used (total)      736  
   data-arc span      7997 days (21.89 yr)  
   first obs. used      1998-12-24  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52926  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:54:08  

Additional Information
 Earth MOID = 2.00365 au 
 Jupiter MOID = 1.92091 au 
 T_jup = 3.153 
[ 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 MPO493357  
diameter diameter 8.936 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70023 (1999 AT13)          Discovered 1999-Jan-08 by Spacewatch at Kitt Peak
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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