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270P/Gehrels
Classification: Jupiter-family Comet          SPK-ID: 1000161
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454667.5 (2008-Jul-20.0) TDB
Reference: JPL 63 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4676042669549644 1.5385e-07  
a 6.751596109724303 4.0787e-07 au
q 3.594520960060681 1.1755e-06 au
i 2.859569508748046 1.8815e-05 deg
node 225.6814394341988 0.00034359 deg
peri 211.4760718886961 0.00040517 deg
M 257.4954557093449 8.8504e-05 deg
tp 2456492.020413168504
(2013-Jul-18.52041317)
0.0014418 TDB
period 6407.787608695724
17.54
0.00058065
1.59e-06
d
yr
n .05618163740500075 5.091e-09 deg/d
Q 9.908671259387924 5.9859e-07 au
  Orbit Determination Parameters
   # obs. used (total)      381  
   data-arc span      6264 days (17.15 yr)  
   first obs. used      1997-02-01  
   last obs. used      2014-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .77202  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 11:13:03  

Additional Information
 Earth MOID = 2.61132 au 
 Jupiter MOID = .299472 au 
 T_jup = 2.782 
[ 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 13.7   1. 63 2 parameter fit from 185 observations, autocmod 2.8
comet total magnitude slope K1 4.5   n/a 63 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2013.5   270P/2012 S5       
 1996.0   270P/1997 C1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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