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22054 (2000 AP21)
Classification: Jupiter Trojan          SPK-ID: 2022054
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05273298285018006 5.9105e-08  
a 5.196162334813742 1.204e-07 au
q 4.922153195525258 3.1414e-07 au
i 20.91473003853498 4.9782e-06 deg
node 287.0559290070801 1.8838e-05 deg
peri 231.2059906563964 6.7638e-05 deg
M 225.0291669270353 7.0305e-05 deg
tp 2460822.533876763058
(2025-May-27.03387676)
0.00088381 TDB
period 4326.358386771085
11.84
0.00015037
4.117e-07
d
yr
n .08321085953045161 2.8921e-09 deg/d
Q 5.470171474102227 1.2675e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1000  
   data-arc span      9307 days (25.48 yr)  
   first obs. used      1995-07-28  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46321  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:58:41  

Additional Information
 Earth MOID = 3.97116 au 
 Jupiter MOID = .172844 au 
 T_jup = 2.866 
[ 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 11.34   n/a E2021B10  
diameter diameter 34.000 km 0.677 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.051   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

22054 (2000 AP21)          Discovered 2000-Jan-03 by LINEAR at Socorro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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