Using FLUXES

To run FLUXES or FLUXNOW, type its name (in lower case) after the prompt:

% fluxes

The program first asks you what output you want to generate:

JCMT FLUXES
 
POS - Do you require planetary data? (Y/N) /YES/ > Y
FLU - Do you require flux data?      (Y/N) /YES/ > Y

In the above example I opted to see both sets of output data. If you were only interested in the planetary positions, reply ``N'' to the second prompt. (Prompts asking for a Y/N answer can also be answered using true/false or t/f or y/n - case is not significant.)

Next, indicate where you want the information displayed or stored:

SCREEN - Display output to terminal? (Y/N) /YES/ > Y
OFL - Store output in a file?        (Y/N) /NO/ > Y
OUTFILE - Name of output file /'fluxes.dat'/ > 
 
Data will be written to file: /home/user1/gjp/flux/fluxes.dat

If you reply ``N'' to the OFL prompt, the next lines shown won't appear.

Next, you are asked to specify the time and date for which the information should be derived. If you set the value of NOW to Y, the current date and time are automatically obtained from your computer. Otherwise, you must specify the time and date yourself, as appears below:

NOW - Use todays date/time? (Y/N) /YES/ > N
 
DATE - UT DATE (DD MM YY) /'12 09 96'/ > 16 09 96
TIME - UT TIME (HH MM SS) /'12 00 00'/ > 08 45 00

Since you might only require flux and positional information for one planet, you are given the option of selecting it by specifying a value for the parameter PLANET. When prompted, give the name of any planet, the Sun, the Moon, or `ALL' (meaning all the planets plus the Sun and Moon). The information requested is then output to the screen and/or to the file (depending on the values you gave the parameters SCREEN and OFL). An example of the output generated is:

Planetary Submillimetre Fluxes for the JCMT                                     
 
UT:  11:25:55       UT Date:18-Sep-1996     HST: 1:25:55                        
 
LST:  0:53:52.8981  Julian:  2450344.976  Epoch: 1996.7145                      
 
Body         RA        TRIMRA         Dec       TRIMDEC        GD     AMASS     
           (h m s)  (arcsec/sec)    (d m s)  (arcsec/sec)     (au)              
SUN     11 44 39.7958  0.0379   + 1 39 35.6411  -0.0161    1.004696  13.375     
MERCURY 11 33 12.7569 -0.0334   - 0 15 11.0814   0.0277    0.652113  13.375     
VENUS    8 57 54.0821  0.0475   +16 20 20.0995  -0.0096    0.931408  13.375     
MARS     8 32  2.5581  0.0268   +19 56 37.7140  -0.0057    2.022076  13.375     
JUPITER 18 35 37.5441  0.0021   -23 23 38.9082   0.0001    4.866561  13.375     
SATURN   0 21  4.1782 -0.0030   - 0 33 48.7199  -0.0013    8.508145   1.078     
URANUS  20 12 44.5684 -0.0008   -20 33 32.2338  -0.0001   19.189787   5.468     
NEPTUNE 19 47 41.0764 -0.0004   -20 39 32.1751  -0.0001   29.655347  10.395     
PLUTO   16  4 56.5905  0.0008   - 7 52 56.4430  -0.0005   30.327917  13.375     
MOON    15 54 32.2690  0.7373   -16 17 35.4393  -0.0368    0.002580  13.375

Mars                                                                            
South pole is Earth-facing; Inclination Angle =  73.30 degrees                  
Semi-diameter =  2.31 arcsecs    Solid angle =  3.95E-10 sterads                
Filter    Centre   Filter   Total   Flux in    Brightness          HPBW        
Wavel.     Freq     Width    Flux    beam      Temperature       assumed       
micron     (GHz)    (GHz)    (Jy)     (Jy)          (K)          (arcsecs)      
 2000     146.0    39.0     52.15     51.81    205.1 +-  0.0       33.8         
 1300     221.0    60.0    119.62    117.85    207.1 +-  0.0       22.3         
 1100     264.0    60.0    170.56    167.00    208.0 +-  0.0       18.7         
  850     350.0    30.0    298.80    287.78    209.3 +-  0.0       14.0         
  750     407.0    30.0    402.83    383.11    210.0 +-  0.0       12.1         
  600     483.0    51.0    564.65    526.27    210.9 +-  0.0       10.2         
  450     677.0    30.0   1093.57    954.64    212.5 +-  0.0        7.3         
  350     866.0    30.0   1761.21   1414.15    213.7 +-  0.0        5.7

and so on.... If you encounter problems, please ask your system manager to consult Appendix A.