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181057 (2005 PT18)
Classification: Main-belt Asteroid          SPK-ID: 2181057
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2826942164838769 6.2003e-08  
a 3.089427158004545 2.9653e-08 au
q 2.21606396818844 1.9378e-07 au
i 13.63167635274088 6.9029e-06 deg
node 308.4362801220416 2.7477e-05 deg
peri 17.25526095524164 2.9897e-05 deg
M 312.0288395282089 1.6111e-05 deg
tp 2459464.797521608095
(2021-Sep-07.29752161)
9.1537e-05 TDB
period 1983.423099277835
5.43
2.8556e-05
7.818e-08
d
yr
n .1815043901278936 2.6132e-09 deg/d
Q 3.96279034782065 3.8035e-08 au
  Orbit Determination Parameters
   # obs. used (total)      341  
   data-arc span      7142 days (19.55 yr)  
   first obs. used      2000-11-06  
   last obs. used      2020-05-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58955  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:02  

Additional Information
 Earth MOID = 1.20551 au 
 Jupiter MOID = 1.40706 au 
 T_jup = 3.121 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO396423  
diameter diameter 2.732 km 0.593 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.285   0.240 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181057 (2005 PT18)          Discovered 2005-Aug-09 by LINEAR at Socorro
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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