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Merged
mitbailey merged 2 commits into from
Apr 29, 2025
Merged

Development #3

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52d1827
Added a required argument that specifies the local/output timezone of…
mitbailey Apr 29, 2025
0bce00e
Fixed a bug where the UTC time offset operation's sign was reversed.
mitbailey Apr 29, 2025
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21 changes: 10 additions & 11 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -15,28 +15,27 @@ Double click `make.bat`.

# Use

Valid usages (REQuired, OPTional):
Valid command line usage (Required <>, Optional []):
1. `./predict.out`
2. `./predict.out {Five-Digit NORAD ID or Input File}`
3. `./predict.out {Five-Digit NORAD ID or Input File} {Output File}`
4. `./predict.out {Five-Digit NORAD ID or Input File} {Output File} {Days to Predict}`
2. `./predict.out <Five-Digit NORAD ID or Input File> <Timezone Offset> [Output File] [Days to Predict]`

First, ensure your two line element is pasted into an appropriate file. Two .tle files are given as examples.

**Specically for using a file:**
First, ensure your two line element is pasted into an appropriate file. Two .tle files are given as examples.
Next, run one of the following commands.

Linux Terminal:
`./predict.out {TLE File} {Days to Generate}`
*Linux Terminal:*
`./predict.out <TLE File> <Timezone Offset> <Days to Generate>`
Will print to terminal {Days to Generate} days worth of pass predictions for the object whose TLE is is {TLE File}.

`./predict.out {TLE File} {Days to Generate} {Output File}`
`./predict.out <TLE File> <Timezone Offset> <Days to Generate> [Output File]`
Will print to the file passed as {Output File} and to the terminal {Days to Generate} days worth of pass predictions for the object whose TLE is is {TLE File}.

Windows Command Prompt:
`predict.out {TLE File} {Days to Generate}`
*Windows Command Prompt:*
`predict.out <TLE File> <Timezone Offset> <Days to Generate>`
Will print to terminal {Days to Generate} days worth of pass predictions for the object whose TLE is is {TLE File}.

`predict.out {TLE File} {Days to Generate} {Output File}`
`predict.out <TLE File> <Timezone Offset> <Days to Generate> [Output File]`
Will print to the file passed as {Output File} and to the terminal {Days to Generate} days worth of pass predictions for the object whose TLE is is {TLE File}.

# Licensing
Expand Down
59 changes: 37 additions & 22 deletions src/predict.cpp
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Expand Up @@ -64,6 +64,8 @@ int main(int argc, char *argv[])
FILE *fp_tle = NULL;
FILE *fp_out = NULL;

int timezone_adjust = 0 // Assume UTC+0 by default.
, norad_id = 0; // Assume no NORAD ID by default.
char identifier[256] = {0}; // NORAD ID or TLE filename.
char fname_out[256] = {0};
int days_to_predict = 2; // Predict two days (48 hours) by default.
Expand All @@ -80,42 +82,48 @@ int main(int argc, char *argv[])
bprintf("NORAD ID or TLE input filename: ");
scanf("%s", identifier);

bprintf("Integer, where UTC+Int is the output timezone: ");
scanf("%d", &timezone_adjust);

bprintf("Output filename: ");
scanf("%s", fname_out);
use_out_file = true;

bprintf("Days to predict: ");
scanf("%d", &days_to_predict);
}
else if (argc == 2)
else if (argc == 3)
{
// ./predict.out {Input File}
// ./predict.out {NORAD ID}

// TODO: Add usages printout and exit() if user uses -help.

strcpy(identifier, argv[1]);
timezone_adjust = atoi(argv[2]);
}
else if (argc == 3)
else if (argc == 4)
{
// ./predict.out {Input File} {Output File}
// ./predict.out {NORAD ID} {Output File}
// Default prediction time.

strcpy(identifier, argv[1]);
strcpy(fname_out, argv[2]);
timezone_adjust = atoi(argv[2]);
strcpy(fname_out, argv[3]);
use_out_file = true;
}
else if (argc == 4)
else if (argc == 5)
{
// ./predict.out {Input File} {Output File} {Days to Predict}
// ./predict.out {NORAD ID} {Output File} {Days to Predict}
// Given prediction time.

strcpy(identifier, argv[1]);
strcpy(fname_out, argv[2]);
timezone_adjust = atoi(argv[2]);
strcpy(fname_out, argv[3]);
use_out_file = true;
days_to_predict = atoi(argv[3]);
days_to_predict = atoi(argv[4]);
}
else
{
Expand All @@ -124,7 +132,7 @@ int main(int argc, char *argv[])
dbprintlf(FATAL "Invalid usage.");
dbprintlf("Usages (REQuired, OPTional):");
dbprintlf(RED_FG "./predict.out");
dbprintlf(RED_FG "./predict.out {REQ: Five-Digit NORAD ID or Input File} {OPT: Output File} {OPT: Days to Predict}");
dbprintlf(RED_FG "./predict.out {REQ: Five-Digit NORAD ID or Input File} {REQ: Int, where UTC+Int is the output timezone} {OPT: Output File} {OPT: Days to Predict}");

#else // defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__)

Expand Down Expand Up @@ -298,20 +306,24 @@ int main(int argc, char *argv[])
DateTime max_el_time;
int begin_et = 0;

TimeSpan FiveHours(5, 0, 0);
DateTime tEST = tnow - FiveHours;
TimeSpan AdjustHours(timezone_adjust, 0, 0);
DateTime tADJ = tnow + AdjustHours;

// TimeSpan FiveHours(5, 0, 0);
// DateTime tEST = tnow - FiveHours;

if (use_out_file)
{
fprintf(fp_out, "Report Generated %04d.%02d.%02d %02d:%02d:%02d EST\nData for %d days.\n\n", tEST.Year(), tEST.Month(), tEST.Day(), tEST.Hour(), tEST.Minute(), tEST.Second(), days_to_predict);
// fprintf(fp_out, "Report Generated %04d.%02d.%02d %02d:%02d:%02d EST\nData for %d days.\n\n", tEST.Year(), tEST.Month(), tEST.Day(), tEST.Hour(), tEST.Minute(), tEST.Second(), days_to_predict);
fprintf(fp_out, "Report Generated %04d.%02d.%02d %02d:%02d:%02d UTC%+d\nData for %d days.\n\n", tADJ.Year(), tADJ.Month(), tADJ.Day(), tADJ.Hour(), tADJ.Minute(), tADJ.Second(), timezone_adjust, days_to_predict);

fprintf(fp_out, "%s\n%s\n", TLE[0], TLE[1]);
fprintf(fp_out, "======================================================================\n\n");
}

bprintlf("It is currently %04d.%02d.%02d %02d:%02d:%02d UTC\n", tnow.Year(), tnow.Month(), tnow.Day(), tnow.Hour(), tnow.Minute(), tnow.Second());

bprintlf("It is currently %04d.%02d.%02d %02d:%02d:%02d EST\n", tEST.Year(), tEST.Month(), tEST.Day(), tEST.Hour(), tEST.Minute(), tEST.Second());
bprintlf("It is currently %04d.%02d.%02d %02d:%02d:%02d UTC%+d\n", tADJ.Year(), tADJ.Month(), tADJ.Day(), tADJ.Hour(), tADJ.Minute(), tADJ.Second(), timezone_adjust);

for (int i = 0; i < 86400 * days_to_predict; i++)
{
Expand All @@ -324,12 +336,12 @@ int main(int argc, char *argv[])
if (!in_pass)
{
bprintlf("== SATELLITE PASS (Now + %d minutes) ==", i / 60);
bprintlf("Time (EST) Az (deg) El (deg)");
bprintlf("Time (UTC%+d) Az (deg) El (deg)", timezone_adjust);
bprintlf("------------------------------------------");
if (use_out_file)
{
fprintf(fp_out, "== SATELLITE PASS (Now + %d minutes) ==\n", i / 60);
fprintf(fp_out, "Time (EST) Az (deg) El (deg)\n");
fprintf(fp_out, "Time (UTC%+d) Az (deg) El (deg)\n", timezone_adjust);
fprintf(fp_out, "------------------------------------------\n");
}
in_pass = true;
Expand All @@ -347,34 +359,37 @@ int main(int argc, char *argv[])
if ((i - begin_et) % 60 == 0)
{

tEST = tnext - FiveHours;
bprintlf("%04d.%02d.%02d %02d:%02d:%02d %6.02lf %6.02lf", tEST.Year(), tEST.Month(), tEST.Day(), tEST.Hour(), tEST.Minute(), tEST.Second(), pos_ahd.azimuth DEG, ahd_el);
// tEST = tnext - FiveHours;
tADJ = tnext - AdjustHours;
bprintlf("%04d.%02d.%02d %02d:%02d:%02d %6.02lf %6.02lf", tADJ.Year(), tADJ.Month(), tADJ.Day(), tADJ.Hour(), tADJ.Minute(), tADJ.Second(), pos_ahd.azimuth DEG, ahd_el);

if (use_out_file)
{
fprintf(fp_out, "%04d.%02d.%02d %02d:%02d:%02d %6.02lf %6.02lf\n", tEST.Year(), tEST.Month(), tEST.Day(), tEST.Hour(), tEST.Minute(), tEST.Second(), pos_ahd.azimuth DEG, ahd_el);
fprintf(fp_out, "%04d.%02d.%02d %02d:%02d:%02d %6.02lf %6.02lf\n", tADJ.Year(), tADJ.Month(), tADJ.Day(), tADJ.Hour(), tADJ.Minute(), tADJ.Second(), pos_ahd.azimuth DEG, ahd_el);
}
}
}
else if (in_pass)
{
// Make sure to print final state when pass ends.
tEST = tnext - FiveHours;
bprintlf("%04d.%02d.%02d %02d:%02d:%02d %6.02lf %6.02lf\n", tEST.Year(), tEST.Month(), tEST.Day(), tEST.Hour(), tEST.Minute(), tEST.Second(), pos_ahd.azimuth DEG, ahd_el);
// tEST = tnext - FiveHours;
tADJ = tnext - AdjustHours;
bprintlf("%04d.%02d.%02d %02d:%02d:%02d %6.02lf %6.02lf\n", tADJ.Year(), tADJ.Month(), tADJ.Day(), tADJ.Hour(), tADJ.Minute(), tADJ.Second(), pos_ahd.azimuth DEG, ahd_el);

if (use_out_file)
{
fprintf(fp_out, "%04d.%02d.%02d %02d:%02d:%02d %6.02lf %6.02lf\n", tEST.Year(), tEST.Month(), tEST.Day(), tEST.Hour(), tEST.Minute(), tEST.Second(), pos_ahd.azimuth DEG, ahd_el);
fprintf(fp_out, "%04d.%02d.%02d %02d:%02d:%02d %6.02lf %6.02lf\n", tADJ.Year(), tADJ.Month(), tADJ.Day(), tADJ.Hour(), tADJ.Minute(), tADJ.Second(), pos_ahd.azimuth DEG, ahd_el);
}

bprintlf("Pass Statistics");
bprintlf(" Maximum Elevation:");
tEST = max_el_time - FiveHours;
bprintlf("%04d.%02d.%02d %02d:%02d:%02d %6.02lf %6.02lf", tEST.Year(), tEST.Month(), tEST.Day(), tEST.Hour(), tEST.Minute(), tEST.Second(), max_el_az, max_el);
// tEST = max_el_time - FiveHours;
tADJ = max_el_time - AdjustHours;
bprintlf("%04d.%02d.%02d %02d:%02d:%02d %6.02lf %6.02lf", tADJ.Year(), tADJ.Month(), tADJ.Day(), tADJ.Hour(), tADJ.Minute(), tADJ.Second(), max_el_az, max_el);
printf("\n\n");
if (use_out_file)
{
fprintf(fp_out, "\nPass Statistics\n Maximum Elevation:\n%04d.%02d.%02d %02d:%02d:%02d %6.02lf %6.02lf\n\n\n", tEST.Year(), tEST.Month(), tEST.Day(), tEST.Hour(), tEST.Minute(), tEST.Second(), max_el_az, max_el);
fprintf(fp_out, "\nPass Statistics\n Maximum Elevation:\n%04d.%02d.%02d %02d:%02d:%02d %6.02lf %6.02lf\n\n\n", tADJ.Year(), tADJ.Month(), tADJ.Day(), tADJ.Hour(), tADJ.Minute(), tADJ.Second(), max_el_az, max_el);
}

in_pass = false;
Expand Down