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162805 (2001 AR)
Classification: Jupiter Trojan          SPK-ID: 2162805
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1109253390675117 7.0854e-08  
a 5.20116194605446 1.7773e-07 au
q 4.62422129364333 4.5459e-07 au
i 25.21363984269468 6.5166e-06 deg
node 130.7416541949149 1.6154e-05 deg
peri 320.1585968584305 5.3973e-05 deg
M 263.9390351298106 6.117e-05 deg
tp 2460156.594766617784
(2023-Jul-31.09476662)
0.00077551 TDB
period 4332.603951509546
11.86
0.00022207
6.08e-07
d
yr
n .08309090884583864 4.2589e-09 deg/d
Q 5.778102598465591 1.9744e-07 au
  Orbit Determination Parameters
   # obs. used (total)      393  
   data-arc span      7168 days (19.62 yr)  
   first obs. used      2000-01-08  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5672  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:41:49  

Additional Information
 Earth MOID = 3.67604 au 
 Jupiter MOID = .523855 au 
 T_jup = 2.798 
[ 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 12.2   n/a MPO320708  
rotation period rot_per 10.078 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

162805 (2001 AR)          Discovered 2001-Jan-02 by Kobayashi, T. at Oizumi
Reference: 20070926/Numbers.arcLast Updated: 2007-09-30

Alternate Designations
 2001 AR = 2000 AV190 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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