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21009 Agilkia (1988 PN1)
Classification: Main-belt Asteroid          SPK-ID: 2021009
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1983067618569634 3.6132e-08  
a 2.413190050094324 7.5518e-09 au
q 1.934638145514676 8.7533e-08 au
i 3.013092378069807 4.1636e-06 deg
node 155.6283007660508 6.1684e-05 deg
peri 200.4895575099343 6.2319e-05 deg
M 209.0310714490762 8.6792e-06 deg
tp 2459774.710048040888
(2022-Jul-14.21004804)
3.3736e-05 TDB
period 1369.259352099011
3.75
6.4274e-06
1.76e-08
d
yr
n .2629158599122488 1.2341e-09 deg/d
Q 2.891741954673973 9.0494e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1643  
   data-arc span      11903 days (32.59 yr)  
   first obs. used      1988-08-12  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45487  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:35:58  

Additional Information
 Earth MOID = .928792 au 
 Jupiter MOID = 2.55223 au 
 T_jup = 3.489 
[ 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 14.74   n/a E2021B10  

21009 Agilkia           Discovered 1988 Aug. 12 by E. W. Elst at Haute Provence.
Agilkia is the name of an island on the Nile in Egypt. It is also the informal name of the site on comet 67P where the Philae probe landed on 2014 Nov. 12.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-03-05Last Updated: 2015-03-09

Alternate Designations
 1988 PN1 = 1998 FQ44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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