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283P/Spacewatch
Classification: Jupiter-family Comet          SPK-ID: 1003254
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455985.5 (2012-Feb-28.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4856735263383909 8.146e-07  
a 4.134789195457646 3.0094e-07 au
q 2.126631546233853 3.5038e-06 au
i 14.46424430875559 4.4432e-05 deg
node 161.2514243601867 0.00011072 deg
peri 21.9833819778434 0.00039328 deg
M 312.6433193984229 0.00010777 deg
tp 2456389.477557231724
(2013-Apr-06.97755723)
0.00095959 TDB
period 3070.990592161085
8.41
0.00033527
9.179e-07
d
yr
n .1172260185097684 1.2798e-08 deg/d
Q 6.14294684468144 4.4709e-07 au
  Orbit Determination Parameters
   # obs. used (total)      110  
   data-arc span      6382 days (17.47 yr)  
   first obs. used      1996-02-17  
   last obs. used      2013-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .60317  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:28:15  

Additional Information
 Earth MOID = 1.13773 au 
 Jupiter MOID = .432838 au 
 T_jup = 2.767 
[ 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 16.7   0.8 8 2 parameter fit from 95 observations, autocmod 2.9c
comet total magnitude slope K1 4.5   n/a 8 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2013.3   283P/2013 EV9       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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