Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2457839.5 (2017-Mar-27.0) TDB
Reference: JPL K182/9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .534476713071357 2.6098e-07  
a 3.45599944504109 4.8454e-07 au
q 1.608848221279094 9.3691e-07 au
i 8.962090696248872 1.2125e-05 deg
node 314.6396914009586 5.4304e-05 deg
peri 330.0006658552098 0.00010394 deg
M 298.154572791861 3.0838e-05 deg
tp 2458242.647541812798
(2018-May-04.14754181)
0.0001279 TDB
period 2346.707292750458
6.42
0.00049352
1.351e-06
d
yr
n .1534064350982871 3.2262e-08 deg/d
Q 5.303150668803085 7.4352e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 7.651259896896437E-9 2.286E-10
A2 [EST] 2.248157289476107E-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      .57679  
   source      ORB  
   producer      Shantanu Naidu  
   solution date      2019-May-15 16:39:40  

Additional Information
 Earth MOID = .598689 au 
 Jupiter MOID = .226 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. K182/9 2 parameter fit from 373 observations, autocmod 2.6q
comet total magnitude slope K1 16.   n/a K182/9 autocmod 2.6q
comet nuclear magnitude M2 15.4   0.9 K182/9 from 759 observations, autocmod 2.6q
comet nuclear magnitude slope K2 5.   n/a K182/9 autocmod 2.6q
comet nuclear phase coefficient PC 0.03   n/a K182/9 autocmod 2.6q
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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-07 09:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin