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297P/Beshore
Classification: Encke-type Comet          SPK-ID: 1002501
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454888.5 (2009-Feb-26.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .308598394316476 5.4605e-07  
a 3.484047960476378 3.0109e-07 au
q 2.408876354151775 2.0998e-06 au
i 10.2634881810502 2.2788e-05 deg
node 98.28544286255293 0.0001002 deg
peri 131.8217205750275 0.00071492 deg
M 51.82785820062227 0.00034289 deg
tp 2454546.532073459147
(2008-Mar-21.03207346)
0.0022892 TDB
period 2375.333610703384
6.50
0.00030791
8.43e-07
d
yr
n .1515576584180935 1.9646e-08 deg/d
Q 4.559219566800982 3.94e-07 au
  Orbit Determination Parameters
   # obs. used (total)      568  
   data-arc span      4838 days (13.25 yr)  
   first obs. used      2001-03-20  
   last obs. used      2014-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      1  
   norm. resid. RMS      .70531  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Jan-11 20:00:24  

Additional Information
 Earth MOID = 1.41207 au 
 Jupiter MOID = .674623 au 
 T_jup = 3.025 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 6.1   1. 34 from 132 observations, assumed slope, autocmod 2.6g
comet total magnitude slope K1 22.   n/a 34 autocmod 2.6g
comet nuclear magnitude M2 13.8   1. 34 from 282 observations, autocmod 2.6g
comet nuclear magnitude slope K2 5.   n/a 34 autocmod 2.6g
comet nuclear phase coefficient PC 0.03   n/a 34 autocmod 2.6g

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2014.7   297P/2014 D1       
 2008.2   297P/2008 J2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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