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37P/Forbes
Classification: Jupiter-family Comet          SPK-ID: 1000028
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2457840.5 (2017-Mar-28.0) TDB
Reference: JPL K182/10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5344761599834154 2.6098e-07  
a 3.456011361402862 4.8454e-07 au
q 1.608855680101205 9.3693e-07 au
i 8.962054270441827 1.2125e-05 deg
node 314.6395769323095 5.4304e-05 deg
peri 330.0004370065654 0.00010394 deg
M 298.3083277973831 3.0808e-05 deg
tp 2458242.647349521037
(2018-May-04.14734952)
0.0001279 TDB
period 2346.719430008127
6.42
0.00049352
1.351e-06
d
yr
n .153405641678585 3.2261e-08 deg/d
Q 5.30316704270452 7.4351e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 7.665750316279664E-9 2.286E-10
A2 [EST] 2.021647578585701E-10 9.265E-11
  Orbit Determination Parameters
   # obs. used (total)      1199  
   data-arc span      2866 days (7.85 yr)  
   first obs. used      2011-02-08  
   last obs. used      2018-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .57623  
   source      ORB  
   producer      Shantanu Naidu  
   solution date      2021-Mar-23 23:57:49  

Additional Information
 Earth MOID = .598762 au 
 Jupiter MOID = .225999 au 
 T_jup = 2.866 
[ 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
comet total magnitude M1 11.5   1. K182/10 2 parameter fit from 373 observations, autocmod 2.9b
comet total magnitude slope K1 16.25   n/a K182/10 autocmod 2.9b
comet nuclear magnitude M2 15.4   0.9 K182/10 from 759 observations, autocmod 2.9b
comet nuclear magnitude slope K2 5.   n/a K182/10 autocmod 2.9b
comet nuclear phase coefficient PC 0.03   n/a K182/10 autocmod 2.9b
diameter diameter 1.92 km n/a Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver,H.A. (2004) Comets II, pp.223-264  

37P/Forbes          Discovered 1929-Aug-01 by Forbes, A. F. I. at Rosebank, South Africa
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1992.6       1993 IV   1993f 
 1986.2       1987 I   1986g 
 1979.8       1980 VI   1980a 
 1973.4       1974 IX   1974a 
 1960.5       1961 VI   1961a 
 1947.7       1948 VIII   1948e 
 1941.2   37P/1942 L1   1942 III   
 1928.4   37P/1929 P1   1929 II   1929c 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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