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21347 (1997 EO11)
Classification: Main-belt Asteroid          SPK-ID: 2021347
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1628429282797177 3.4631e-08  
a 2.693709626856374 1.2657e-08 au
q 2.255058063283816 9.7199e-08 au
i 14.20745130305843 3.5529e-06 deg
node 111.79466126 1.5841e-05 deg
peri 314.143524772424 2.0004e-05 deg
M 262.3343078317195 1.4249e-05 deg
tp 2459834.590792917987
(2022-Sep-12.09079292)
6.5728e-05 TDB
period 1614.821765443819
4.42
1.1381e-05
3.116e-08
d
yr
n .2229348202407077 1.5713e-09 deg/d
Q 3.132361190428932 1.4718e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1750  
   data-arc span      8925 days (24.44 yr)  
   first obs. used      1997-03-03  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46858  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:42:00  

Additional Information
 Earth MOID = 1.2929 au 
 Jupiter MOID = 2.18181 au 
 T_jup = 3.308 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457620.5 (2016-Aug-20.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1650417704797507 3.4543e-08  
q 2.245745988769465 9.6824e-08 au
tp 2458223.702917358406
(2018-Apr-15.20291736)
5.8973e-05 TDB
node 111.80711224793 1.584e-05 deg
peri 314.6014162432792 1.991e-05 deg
i 14.21533944375537 3.5554e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1750  
   data-arc span      8925 days (24.44 yr)  
   first obs. used      1997-03-03  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46858  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:42:00  

Additional Information
 Jupiter MOID = 2.18181 au 
 T_jup = 3.308 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.193229294005565E-15 -3.326944232743002E-15 -5.043064096130941E-13 2.136535018144245E-15 -1.02037075656411E-13 9.048663852089968E-16
q -3.326944232743002E-15 9.37484304820568E-15 1.631480467994999E-12 -5.978746988383739E-15 3.225582512018838E-13 -2.106019181217086E-15
tp -5.043064096130941E-13 1.631480467994999E-12 3.477839791567469E-9 -5.008478433744733E-12 7.289589076456292E-10 2.458415226216749E-13
node 2.136535018144245E-15 -5.978746988383739E-15 -5.008478433744733E-12 2.509144029145652E-10 -2.441070507766095E-10 -2.194375133941358E-12
peri -1.02037075656411E-13 3.225582512018838E-13 7.289589076456292E-10 -2.441070507766095E-10 3.964123176805516E-10 2.131080286577512E-12
i 9.048663852089968E-16 -2.106019181217086E-15 2.458415226216749E-13 -2.194375133941358E-12 2.131080286577512E-12 1.264116386019712E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.95   n/a MPO636384  
diameter diameter 3.823 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.400   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21347 (1997 EO11)          Discovered 1997-Mar-03 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 EO11 = 2000 WS48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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