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11347 (1997 AG21)
Classification: Main-belt Asteroid          SPK-ID: 2011347
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1577870679875495 2.9529e-08  
a 2.483849081645864 8.1114e-09 au
q 2.091929817729395 7.4222e-08 au
i 1.133408142361894 4.5777e-06 deg
node 220.4210081938587 0.00017234 deg
peri 211.0714291621316 0.00017344 deg
M 22.2366205822532 1.7356e-05 deg
tp 2458912.181330289865
(2020-Mar-03.68133029)
6.9025e-05 TDB
period 1429.836021082435
3.91
7.0041e-06
1.918e-08
d
yr
n .2517771231749132 1.2333e-09 deg/d
Q 2.875768345562332 9.3913e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2340  
   data-arc span      17288 days (47.33 yr)  
   first obs. used      1972-10-06  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48299  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:01:09  

Additional Information
 Earth MOID = 1.1066 au 
 Jupiter MOID = 2.39267 au 
 T_jup = 3.459 
[ 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 13.7   n/a MPO347615  
diameter diameter 5.258 km 0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.254   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11347 (1997 AG21)          Discovered 1997-Jan-09 by Ueda, S., Kaneda, H. at Kushiro
Reference: 19990831/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 AG21 = 1972 TP1 = 1978 EY2 = 1984 XE = 1998 HN102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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