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214970 (2008 AT)
Classification: Main-belt Asteroid          SPK-ID: 2214970
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04129703880860913 8.9342e-08  
a 3.198317347081254 5.7705e-08 au
q 3.066236311476592 2.6685e-07 au
i 16.88311758162942 9.324e-06 deg
node 70.51727154756941 2.0689e-05 deg
peri 193.4324191267998 9.4695e-05 deg
M 222.2218204359401 9.0281e-05 deg
tp 2459400.074064692249
(2021-Jul-04.57406469)
0.00052232 TDB
period 2089.203560389441
5.72
5.6541e-05
1.548e-07
d
yr
n .1723144679750084 4.6634e-09 deg/d
Q 3.330398382685916 6.0088e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      6229 days (17.05 yr)  
   first obs. used      2001-12-20  
   last obs. used      2019-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53042  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:03:14  

Additional Information
 Earth MOID = 2.05264 au 
 Jupiter MOID = 1.71821 au 
 T_jup = 3.126 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457293.5 (2015-Sep-28.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04047166604924592 8.9992e-08  
q 3.068222345521713 2.6904e-07 au
tp 2457305.106746223720
(2015-Oct-09.60674622)
0.00053237 TDB
node 70.5365682028101 2.0691e-05 deg
peri 192.5339932203725 9.5365e-05 deg
i 16.88300233889389 9.324e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      6229 days (17.05 yr)  
   first obs. used      2001-12-20  
   last obs. used      2019-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53042  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:03:14  

Additional Information
 Jupiter MOID = 1.71821 au 
 T_jup = 3.126 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.098505148944434E-15 -2.379192474375394E-14 -2.824027519781339E-11 1.85651127710503E-14 -5.076184079807883E-12 2.806586924162563E-14
q -2.379192474375394E-14 7.238269251308286E-14 8.586431123488343E-11 -6.782361133648675E-14 1.542106149812103E-11 -7.735495607290631E-14
tp -2.824027519781339E-11 8.586431123488343E-11 2.834199789130702E-7 -1.243840181829134E-10 4.959399052988029E-8 -1.696627408754979E-10
node 1.85651127710503E-14 -6.782361133648675E-14 -1.243840181829134E-10 4.281323131700338E-10 -4.314594203871187E-10 -8.356262406817605E-11
peri -5.076184079807883E-12 1.542106149812103E-11 4.959399052988029E-8 -4.314594203871187E-10 9.09443174271743E-9 5.028817628333055E-11
i 2.806586924162563E-14 -7.735495607290631E-14 -1.696627408754979E-10 -8.356262406817605E-11 5.028817628333055E-11 8.693739113987263E-11

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 15.4   n/a MPO433406  
diameter diameter 5.385 km 0.549 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

214970 (2008 AT)          Discovered 2008-Jan-01 by Schiaparelli at Schiaparelli
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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