Nathan Kelley-Hoskins / ctools

Commit 70b28cc17d7937a8d58c8064e223c902d65df200

Authored by Jürgen Knödlseder
1 parent 4972e29c

Add 10 hours night / 14 hours day scheme to make_pointing and start observations on 1/1/2021

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Showing 1 changed file with 85 additions and 15 deletions
examples/make_pointings.py
  View file @70b28cc
... ... @@ -2,7 +2,7 @@
2 2 # ==========================================================================
3 3 # Generates pointing patterns for CTA observations
4 4 #
5   -# Copyright (C) 2015-2016 Juergen Knoedlseder
  5 +# Copyright (C) 2015-2017 Juergen Knoedlseder
6 6 #
7 7 # This program is free software: you can redistribute it and/or modify
8 8 # it under the terms of the GNU General Public License as published by
... ... @@ -96,10 +96,49 @@ def get_positions(xmin, xmax, ymin, ymax, step):
96 96 return positions
97 97  
98 98  
  99 +# ============== #
  100 +# Set start time #
  101 +# ============== #
  102 +def set_tmin_for_next_pointing(tmin, duration):
  103 + """
  104 + Set start time for next pointing
  105 +
  106 + Adds duration and 2 min for slew, and takes care of day and night. It is
  107 + assumed that the night lasts from [0,10] and the day lasts from [10,24]
  108 +
  109 + Parameters
  110 + ----------
  111 + tmin : float
  112 + Start time of current pointing (sec)
  113 + duration : float
  114 + Duration of current pointing (sec)
  115 +
  116 + Returns
  117 + -------
  118 + tmin : float
  119 + Start time of new pointing
  120 + """
  121 + # Update start time, add 2 min for slew
  122 + tmin += duration + 120.0
  123 +
  124 + # If we have more than 10 hours in day then go to next day
  125 + hours_in_day = tmin/3600.0 % 24.0
  126 + if hours_in_day > 10.0:
  127 + days = int(tmin/86400.0)
  128 + days += 1
  129 + tmin = float(days) * 86400.0
  130 +
  131 + # Dump result
  132 + #print(tmin, hours_in_day)
  133 +
  134 + # Return start time
  135 + return tmin
  136 +
  137 +
99 138 # ====================== #
100 139 # Setup patch on the sky #
101 140 # ====================== #
102   -def set_patch(lmin=-30.0, lmax=30.0, bmin=-1.5, bmax=+1.5,
  141 +def set_patch(tmin, lmin=-30.0, lmax=30.0, bmin=-1.5, bmax=+1.5,
103 142 separation=3.0, hours=100.0, run_duration=30.0,
104 143 site=None, caldb='prod2', lst=True, autodec=0.0):
105 144 """
... ... @@ -107,6 +146,8 @@ def set_patch(lmin=-30.0, lmax=30.0, bmin=-1.5, bmax=+1.5,
107 146  
108 147 Parameters
109 148 ----------
  149 + tmin : float
  150 + Observation start time (seconds)
110 151 lmin : float, optional
111 152 Minimum Galactic Longitude (deg)
112 153 lmax : float, optional
... ... @@ -163,8 +204,12 @@ def set_patch(lmin=-30.0, lmax=30.0, bmin=-1.5, bmax=+1.5,
163 204 # Loop over number of runs
164 205 for run in range(n_runs):
165 206  
166   - # Set positions and duration
167   - obs = {'lon': pnt['x'], 'lat': pnt['y'], 'duration': exposure}
  207 + # Set positions, start time and duration
  208 + obs = {'lon': pnt['x'], 'lat': pnt['y'], \
  209 + 'tmin': tmin, 'duration': exposure}
  210 +
  211 + # Update start time for next pointing
  212 + tmin = set_tmin_for_next_pointing(tmin, exposure)
168 213  
169 214 # Optionally add-in site dependent IRF
170 215 if site != None:
... ... @@ -309,28 +354,43 @@ def set_gps(separation=3.0, bmin=-1.3, bmax=1.3, caldb='prod2', lst=True):
309 354 # Initialise observation definition
310 355 obsdef = []
311 356  
  357 + # Initialise start time (1-1-2021)
  358 + tmin = 7671.0 * 86400.0
  359 +
312 360 # Add inner region South
313   - obsdef.extend(set_patch(lmin=-60.0, lmax=60.0, bmin=bmin, bmax=bmax,
  361 + obsdef.extend(set_patch(tmin, lmin=-60.0, lmax=60.0, bmin=bmin, bmax=bmax,
314 362 separation=separation, hours=780,
315 363 site='South', caldb=caldb, lst=lst))
316 364  
  365 + # Update start time
  366 + tmin = set_tmin_for_next_pointing(obsdef[-1]['tmin'], obsdef[-1]['duration'])
  367 +
317 368 # Add Vela & Carina region
318   - obsdef.extend(set_patch(lmin=240.0, lmax=300.0, bmin=bmin, bmax=bmax,
  369 + obsdef.extend(set_patch(tmin, lmin=240.0, lmax=300.0, bmin=bmin, bmax=bmax,
319 370 separation=separation, hours=180,
320 371 site='South', caldb=caldb, lst=lst))
321 372  
  373 + # Update start time
  374 + tmin = set_tmin_for_next_pointing(obsdef[-1]['tmin'], obsdef[-1]['duration'])
  375 +
322 376 # Add 210-240 region
323   - obsdef.extend(set_patch(lmin=210.0, lmax=240.0, bmin=bmin, bmax=bmax,
  377 + obsdef.extend(set_patch(tmin, lmin=210.0, lmax=240.0, bmin=bmin, bmax=bmax,
324 378 separation=separation, hours=60,
325 379 site='South', caldb=caldb, lst=lst))
326 380  
  381 + # Initialise start time
  382 + tmin = 7671.0 * 86400.0
  383 +
327 384 # Add Cygnus, Perseus
328   - obsdef.extend(set_patch(lmin=60.0, lmax=150.0, bmin=bmin, bmax=bmax,
  385 + obsdef.extend(set_patch(tmin, lmin=60.0, lmax=150.0, bmin=bmin, bmax=bmax,
329 386 separation=separation, hours=450,
330 387 site='North', caldb=caldb, lst=lst))
331 388  
  389 + # Update start time
  390 + tmin = set_tmin_for_next_pointing(obsdef[-1]['tmin'], obsdef[-1]['duration'])
  391 +
332 392 # Add Anticentre
333   - obsdef.extend(set_patch(lmin=150.0, lmax=210.0, bmin=bmin, bmax=bmax,
  393 + obsdef.extend(set_patch(tmin, lmin=150.0, lmax=210.0, bmin=bmin, bmax=bmax,
334 394 separation=separation, hours=150,
335 395 site='North', caldb=caldb, lst=lst))
336 396  
... ... @@ -362,8 +422,11 @@ def set_extgal(separation=3.0, caldb='prod2', lst=True):
362 422 # Initialise observation definition
363 423 obsdef = []
364 424  
  425 + # Initialise start time (1-1-2021)
  426 + tmin = 7671.0 * 86400.0
  427 +
365 428 # Set patch
366   - obsdef.extend(set_patch(lmin=-90.0, lmax=90.0, bmin=+5.0, bmax=+88.0,
  429 + obsdef.extend(set_patch(tmin, lmin=-90.0, lmax=90.0, bmin=+5.0, bmax=+88.0,
367 430 separation=separation, hours=1000,
368 431 site='Automatic', caldb=caldb, lst=lst,
369 432 autodec=10.0))
... ... @@ -394,13 +457,19 @@ def set_gc(caldb='prod2', lst=True):
394 457 # Initialise observation definition
395 458 obsdef = []
396 459  
  460 + # Initialise start time (1-1-2021)
  461 + tmin = 7671.0 * 86400.0
  462 +
397 463 # Central wobble
398   - obsdef.extend(set_patch(lmin=-0.5, lmax=0.5, bmin=-0.5, bmax=0.5,
  464 + obsdef.extend(set_patch(tmin, lmin=-0.5, lmax=0.5, bmin=-0.5, bmax=0.5,
399 465 separation=0.1, hours=525,
400 466 site='South', caldb=caldb, lst=lst))
401 467  
  468 + # Update start time
  469 + tmin = set_tmin_for_next_pointing(obsdef[-1]['tmin'], obsdef[-1]['duration'])
  470 +
402 471 # Extended region
403   - obsdef.extend(set_patch(lmin=-10.0, lmax=10.0, bmin=-10.0, bmax=10.0,
  472 + obsdef.extend(set_patch(tmin, lmin=-10.0, lmax=10.0, bmin=-10.0, bmax=10.0,
404 473 separation=1.5, hours=300,
405 474 site='South', caldb=caldb, lst=lst))
406 475  
... ... @@ -491,7 +560,7 @@ def write_obsdef(filename, obsdef):
491 560 file = open(filename, 'w')
492 561  
493 562 # Write header
494   - file.write('ra,dec,duration,caldb,irf\n')
  563 + file.write('ra,dec,tmin,duration,caldb,irf\n')
495 564  
496 565 # Loop over pointings
497 566 for obs in obsdef:
... ... @@ -509,8 +578,9 @@ def write_obsdef(filename, obsdef):
509 578 dec = obs['dec']
510 579  
511 580 # Write information
512   - file.write('%8.4f,%8.4f,%.4f,%s,%s\n' %
513   - (ra, dec, obs['duration'], obs['caldb'], obs['irf']))
  581 + file.write('%8.4f,%8.4f,%.4f,%.4f,%s,%s\n' %
  582 + (ra, dec, obs['tmin'], obs['duration'], obs['caldb'], \
  583 + obs['irf']))
514 584  
515 585 # Close file
516 586 file.close()
... ...