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How to use jplephem - 10 common examples

To help you get started, we’ve selected a few jplephem examples, based on popular ways it is used in public projects.

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github rabrahm / ceres / harps / harpspipe.py View on Github external
# Moon Phase Calculations
    gobs = ephem.Observer()  
    gobs.name='Eso3.6'  
    gobs.lat  = rad(latitude)  # lat/long in decimal degrees  
    gobs.long = rad(longitude)
    DDATE     = h[0].header['DATE-OBS'][:10]
    HHOUR     = h[0].header['DATE-OBS'][11:]
    gobs.date = str(DDATE[:4]) + '-' +  str(DDATE[5:7]) + '-' + str(DDATE[8:]) + ' ' +  HHOUR[:2] + ':' + HHOUR[3:5] +':' + str(float(HHOUR[6:]) + halfcounts * TEXP )
    mephem    = ephem.Moon()
    mephem.compute(gobs)

    mephem = ephem.Moon()
    mephem.compute(gobs)
    Mcoo = jplephem.object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
    Mp = jplephem.barycentric_object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
    Sp = jplephem.barycentric_object_track("Sun", int(mjd), float(mjd%1), 1, 0.0)
    res  = jplephem.object_doppler("Moon", int(mjd), mjd%1, 1, 0.0)
    lunation,moon_state,moonsep,moonvel = GLOBALutils.get_lunar_props(ephem,gobs,Mcoo,Mp,Sp,res,ra,dec)
    refvel = bcvel_baryc + moonvel
    print '\t\tRadial Velocity of sacttered moonlight:',refvel

    sorted_indices = np.argsort( np.abs( np.array(ThAr_ref_dates) - mjd ) )

    # optimally and simply extract spectra
    sci_fits_ob_B = dirout + fsim.split('/')[-1][:-4]+'spec.ob.B.fits.S'
    sci_fits_co_B = dirout + fsim.split('/')[-1][:-4]+'spec.co.B.fits.S'
    sci_fits_ob_R = dirout + fsim.split('/')[-1][:-4]+'spec.ob.R.fits.S'
    sci_fits_co_R = dirout + fsim.split('/')[-1][:-4]+'spec.co.R.fits.S'
    #force_sci_extract = True
    if ( os.access(sci_fits_ob_B,os.F_OK) == False ) or ( os.access(sci_fits_co_B,os.F_OK) == False ) \
    or ( os.access(sci_fits_ob_R,os.F_OK) == False ) or ( os.access(sci_fits_co_R,os.F_OK) == False ) \
    or (force_sci_extract):
github rabrahm / ceres / hires / hirespipe.py View on Github external
print "\t\tBarycentric velocity:", bcvel_baryc

    res  = jplephem.pulse_delay(ra/15.0, dec, int(mjd), mjd%1, 1, 0.0)
    mbjd = mjd + res['delay'][0] / (3600.0 * 24.0)

    # Moon Phase Calculations
    gobs      = ephem.Observer()  
    gobs.name = 'Keck'
    gobs.lat  = rad(latitude)  # lat/long in decimal degrees  
    gobs.long = rad(longitude) 
    gobs.date = h[0].header['DATE-OBS'] + ' ' + h[0].header['UTC'].replace(':','-')
    mephem    = ephem.Moon()
    mephem.compute(gobs)
    Mcoo        = jplephem.object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
    Mp   = jplephem.barycentric_object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
    Sp   = jplephem.barycentric_object_track("Sun", int(mjd), float(mjd%1), 1, 0.0)
    res  = jplephem.object_doppler("Moon", int(mjd), mjd%1, 1, 0.0)
    lunation,moon_state,moonsep,moonvel = GLOBALutils.get_lunar_props(ephem,gobs,Mcoo,Mp,Sp,res,ra,dec)
    refvel = bcvel_baryc + moonvel
    print '\t\tRadial Velocity of sacttered moonlight:',refvel
 
    sci_fits        = dirout + fsim.split('/')[-1][:-4]+'spec_'+str(int(chip))+'.fits'
    sci_fits_simple = dirout + fsim.split('/')[-1][:-4]+'spec.simple_'+str(int(chip))+'.fits'
    P_fits          = dirout + 'P_' + fsim.split('/')[-1][:-4]+'spec_'+str(int(chip))+'.fits'

    if ( os.access(sci_fits,os.F_OK) == False ) or ( os.access(sci_fits_simple,os.F_OK) == False ) or \
       ( force_sci_extract ):
	
        print "\t\tNo previous extraction or extraction forced for science file", fsim, "extracting..."

	P = GLOBALutils.obtain_P(data,c_new,ext_aperture,ronoise,\
                                    gain,NSigma_Marsh, S_Marsh, \
github rabrahm / ceres / cafe / cafepipe.py View on Github external
lbary_ltopo = 1.0 + res['frac'][0]
    bcvel_baryc = ( lbary_ltopo - 1.0 ) * 2.99792458E5
    print "\t\tBarycentric velocity:", bcvel_baryc
    res  = jplephem.pulse_delay(ra/15.0, dec, int(mjd), mjd%1, 1, 0.0)
    mbjd = mjd + res['delay'][0] / (3600.0 * 24.0)

    gobs      = ephem.Observer()  
    gobs.name = h[0].header['TELESCOP']
    gobs.lat  = rad(latitude)  # lat/long in decimal degrees  
    gobs.long = rad(longitude) 
    gobs.date = h[0].header['DATE'][:10] + ' ' + h[0].header['DATE'][11:]
    mephem    = ephem.Moon()
    mephem.compute(gobs)

    Mcoo = jplephem.object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
    Mp = jplephem.barycentric_object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
    Sp = jplephem.barycentric_object_track("Sun", int(mjd), float(mjd%1), 1, 0.0)
    res  = jplephem.object_doppler("Moon", int(mjd), mjd%1, 1, 0.0)
    lunation,moon_state,moonsep,moonvel = GLOBALutils.get_lunar_props(ephem,gobs,Mcoo,Mp,Sp,res,ra,dec)
    refvel = bcvel_baryc + moonvel
    print '\t\tRadial Velocity of sacttered moonlight:',refvel
    moon_alts.update({fsim:mephem.alt})
    moon_ills.update({fsim:lunation})

    print '\t\tExtraction:'
    sci_fits        = dirout + fsim.split('/')[-1][:-4]+'spec.fits.S'
    sci_fits_simple = dirout + fsim.split('/')[-1][:-4]+'spec.simple.fits.S'
    if ( os.access(sci_fits,os.F_OK) == False ) or ( os.access(sci_fits_simple,os.F_OK) == False ) or \
       ( force_sci_extract ):

        print "\t\t\tNo previous extraction or extraction forced for science file", fsim, "extracting..."
        sci_S  = np.zeros( (nord,3,data.shape[1]) )
github rabrahm / ceres / hires / hirespipe.py View on Github external
print "\t\tBarycentric velocity:", bcvel_baryc

    res  = jplephem.pulse_delay(ra/15.0, dec, int(mjd), mjd%1, 1, 0.0)
    mbjd = mjd + res['delay'][0] / (3600.0 * 24.0)

    # Moon Phase Calculations
    gobs      = ephem.Observer()  
    gobs.name = 'Keck'
    gobs.lat  = rad(latitude)  # lat/long in decimal degrees  
    gobs.long = rad(longitude) 
    gobs.date = h[0].header['DATE-OBS'] + ' ' + h[0].header['UTC'].replace(':','-')
    mephem    = ephem.Moon()
    mephem.compute(gobs)
    Mcoo        = jplephem.object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
    Mp   = jplephem.barycentric_object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
    Sp   = jplephem.barycentric_object_track("Sun", int(mjd), float(mjd%1), 1, 0.0)
    res  = jplephem.object_doppler("Moon", int(mjd), mjd%1, 1, 0.0)
    lunation,moon_state,moonsep,moonvel = GLOBALutils.get_lunar_props(ephem,gobs,Mcoo,Mp,Sp,res,ra,dec)
    refvel = bcvel_baryc + moonvel
    print '\t\tRadial Velocity of sacttered moonlight:',refvel
 
    sci_fits        = dirout + fsim.split('/')[-1][:-4]+'spec_'+str(int(chip))+'.fits'
    sci_fits_simple = dirout + fsim.split('/')[-1][:-4]+'spec.simple_'+str(int(chip))+'.fits'
    P_fits          = dirout + 'P_' + fsim.split('/')[-1][:-4]+'spec_'+str(int(chip))+'.fits'

    if ( os.access(sci_fits,os.F_OK) == False ) or ( os.access(sci_fits_simple,os.F_OK) == False ) or \
       ( force_sci_extract ):
	
        print "\t\tNo previous extraction or extraction forced for science file", fsim, "extracting..."

	P = GLOBALutils.obtain_P(data,c_new,ext_aperture,ronoise,\
github rabrahm / ceres / arces / arcespipe.py View on Github external
epoch       = h[0].header['EQUINOX']

    ra2,dec2 = GLOBALutils.getcoords(obname,mjd,filen=reffile)
    if ra2 !=0 and dec2 != 0:
        ra = ra2
        dec = dec2
    else:
        print '\t\tUsing the coordinates found in the image header.'

    iers          = GLOBALutils.JPLiers( baryc_dir, mjd-999.0, mjd+999.0 )
    obsradius, R0 = GLOBALutils.JPLR0( latitude, altitude)
    obpos         = GLOBALutils.obspos( longitude, obsradius, R0 )
    jplephem.set_ephemeris_dir( baryc_dir , ephemeris )
    jplephem.set_observer_coordinates( obpos[0], obpos[1], obpos[2] )

    res = jplephem.doppler_fraction(ra/15.0, dec, int(mjd), mjd%1, 1, 0.0)
    lbary_ltopo = 1.0 + res['frac'][0]
    bcvel_baryc = ( lbary_ltopo - 1.0 ) * 2.99792458E5
    print '\t\tBarycentric velocity:', bcvel_baryc
    res = jplephem.pulse_delay(ra/15.0, dec, int(mjd), mjd%1, 1, 0.0)
    mbjd = mjd + res['delay'][0] / (3600.0 * 24.0)

    # Moon Phase Calculations
    gobs = ephem.Observer()  
    gobs.name='APO3.5'  
    gobs.lat=rad(latitude)  # lat/long in decimal degrees  
    gobs.long=rad(longitude)

    DDATE = h[0].header['DATE-OBS'].split('T')[0]
    HHOUR = h[0].header['DATE-OBS'].split('T')[1]
    Mho = HHOUR[:2]
    Mmi = HHOUR[3:5]
github rabrahm / ceres / arces / arcespipe.py View on Github external
ra = ra2
        dec = dec2
    else:
        print '\t\tUsing the coordinates found in the image header.'

    iers          = GLOBALutils.JPLiers( baryc_dir, mjd-999.0, mjd+999.0 )
    obsradius, R0 = GLOBALutils.JPLR0( latitude, altitude)
    obpos         = GLOBALutils.obspos( longitude, obsradius, R0 )
    jplephem.set_ephemeris_dir( baryc_dir , ephemeris )
    jplephem.set_observer_coordinates( obpos[0], obpos[1], obpos[2] )

    res = jplephem.doppler_fraction(ra/15.0, dec, int(mjd), mjd%1, 1, 0.0)
    lbary_ltopo = 1.0 + res['frac'][0]
    bcvel_baryc = ( lbary_ltopo - 1.0 ) * 2.99792458E5
    print '\t\tBarycentric velocity:', bcvel_baryc
    res = jplephem.pulse_delay(ra/15.0, dec, int(mjd), mjd%1, 1, 0.0)
    mbjd = mjd + res['delay'][0] / (3600.0 * 24.0)

    # Moon Phase Calculations
    gobs = ephem.Observer()  
    gobs.name='APO3.5'  
    gobs.lat=rad(latitude)  # lat/long in decimal degrees  
    gobs.long=rad(longitude)

    DDATE = h[0].header['DATE-OBS'].split('T')[0]
    HHOUR = h[0].header['DATE-OBS'].split('T')[1]
    Mho = HHOUR[:2]
    Mmi = HHOUR[3:5]
    Mse = HHOUR[6:]
    gobs.date = str(DDATE[:4]) + '-' +  str(DDATE[5:7]) + '-' + str(DDATE[8:]) + ' ' +  Mho + ':' + Mmi +':' + Mse
    mephem = ephem.Moon()
    mephem.compute(gobs)
github rabrahm / ceres / espadons / espadonspipe.py View on Github external
if ra2 !=0 and dec2 != 0:
        ra = ra2
        dec = dec2
    else:
        print '\t\tUsing the coordinates found in the image header.'

    iers                    = GLOBALutils.JPLiers( baryc_dir, mjd-999.0, mjd+999.0 )
    obsradius, R0           = GLOBALutils.JPLR0( latitude, altitude)
    obpos                   = GLOBALutils.obspos( longitude, obsradius, R0 )
    jplephem.set_ephemeris_dir( baryc_dir , ephemeris )
    jplephem.set_observer_coordinates( float(obpos[0]), float(obpos[1]), float(obpos[2]) )
    res         = jplephem.doppler_fraction(float(ra/15.0), float(dec), long(mjd), float(mjd%1), 1, 0.0)
    lbary_ltopo = 1.0 + res['frac'][0]
    bcvel_baryc = ( lbary_ltopo - 1.0 ) * 2.99792458E5
    print "\t\tBarycentric velocity:", bcvel_baryc
    res  = jplephem.pulse_delay(ra/15.0, dec, int(mjd), mjd%1, 1, 0.0)
    mbjd = mjd + res['delay'][0] / (3600.0 * 24.0)

    gobs      = ephem.Observer()  
    gobs.name = h[0].header['TELESCOP']
    gobs.lat  = rad(latitude)  # lat/long in decimal degrees  
    gobs.long = rad(longitude)
    timeT = h[0].header['UTC-OBS'].split(':')
    if len(timeT[0]) == 1:
        gobs.date = h[0].header['DATE-OBS'][:10] + ' 0' + h[0].header['UTC-OBS']
    else:
        gobs.date = h[0].header['DATE-OBS'][:10] + ' ' + h[0].header['UTC-OBS']
    mephem    = ephem.Moon()
    mephem.compute(gobs)

    Mcoo = jplephem.object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
    Mp = jplephem.barycentric_object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
github rabrahm / ceres / harps / harpspipe.py View on Github external
gobs = ephem.Observer()  
    gobs.name='Eso3.6'  
    gobs.lat  = rad(latitude)  # lat/long in decimal degrees  
    gobs.long = rad(longitude)
    DDATE     = h[0].header['DATE-OBS'][:10]
    HHOUR     = h[0].header['DATE-OBS'][11:]
    gobs.date = str(DDATE[:4]) + '-' +  str(DDATE[5:7]) + '-' + str(DDATE[8:]) + ' ' +  HHOUR[:2] + ':' + HHOUR[3:5] +':' + str(float(HHOUR[6:]) + halfcounts * TEXP )
    mephem    = ephem.Moon()
    mephem.compute(gobs)

    mephem = ephem.Moon()
    mephem.compute(gobs)
    Mcoo = jplephem.object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
    Mp = jplephem.barycentric_object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
    Sp = jplephem.barycentric_object_track("Sun", int(mjd), float(mjd%1), 1, 0.0)
    res  = jplephem.object_doppler("Moon", int(mjd), mjd%1, 1, 0.0)
    lunation,moon_state,moonsep,moonvel = GLOBALutils.get_lunar_props(ephem,gobs,Mcoo,Mp,Sp,res,ra,dec)
    refvel = bcvel_baryc + moonvel
    print '\t\tRadial Velocity of sacttered moonlight:',refvel

    sorted_indices = np.argsort( np.abs( np.array(ThAr_ref_dates) - mjd ) )

    # optimally and simply extract spectra
    sci_fits_ob_B = dirout + fsim.split('/')[-1][:-4]+'spec.ob.B.fits.S'
    sci_fits_co_B = dirout + fsim.split('/')[-1][:-4]+'spec.co.B.fits.S'
    sci_fits_ob_R = dirout + fsim.split('/')[-1][:-4]+'spec.ob.R.fits.S'
    sci_fits_co_R = dirout + fsim.split('/')[-1][:-4]+'spec.co.R.fits.S'
    #force_sci_extract = True
    if ( os.access(sci_fits_ob_B,os.F_OK) == False ) or ( os.access(sci_fits_co_B,os.F_OK) == False ) \
    or ( os.access(sci_fits_ob_R,os.F_OK) == False ) or ( os.access(sci_fits_co_R,os.F_OK) == False ) \
    or (force_sci_extract):
github rabrahm / ceres / hires / hirespipe.py View on Github external
res  = jplephem.pulse_delay(ra/15.0, dec, int(mjd), mjd%1, 1, 0.0)
    mbjd = mjd + res['delay'][0] / (3600.0 * 24.0)

    # Moon Phase Calculations
    gobs      = ephem.Observer()  
    gobs.name = 'Keck'
    gobs.lat  = rad(latitude)  # lat/long in decimal degrees  
    gobs.long = rad(longitude) 
    gobs.date = h[0].header['DATE-OBS'] + ' ' + h[0].header['UTC'].replace(':','-')
    mephem    = ephem.Moon()
    mephem.compute(gobs)
    Mcoo        = jplephem.object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
    Mp   = jplephem.barycentric_object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
    Sp   = jplephem.barycentric_object_track("Sun", int(mjd), float(mjd%1), 1, 0.0)
    res  = jplephem.object_doppler("Moon", int(mjd), mjd%1, 1, 0.0)
    lunation,moon_state,moonsep,moonvel = GLOBALutils.get_lunar_props(ephem,gobs,Mcoo,Mp,Sp,res,ra,dec)
    refvel = bcvel_baryc + moonvel
    print '\t\tRadial Velocity of sacttered moonlight:',refvel
 
    sci_fits        = dirout + fsim.split('/')[-1][:-4]+'spec_'+str(int(chip))+'.fits'
    sci_fits_simple = dirout + fsim.split('/')[-1][:-4]+'spec.simple_'+str(int(chip))+'.fits'
    P_fits          = dirout + 'P_' + fsim.split('/')[-1][:-4]+'spec_'+str(int(chip))+'.fits'

    if ( os.access(sci_fits,os.F_OK) == False ) or ( os.access(sci_fits_simple,os.F_OK) == False ) or \
       ( force_sci_extract ):
	
        print "\t\tNo previous extraction or extraction forced for science file", fsim, "extracting..."

	P = GLOBALutils.obtain_P(data,c_new,ext_aperture,ronoise,\
                                    gain,NSigma_Marsh, S_Marsh, \
				    N_Marsh, Marsh_alg, min_extract_col,\
github rabrahm / ceres / espadons / espadonspipe.py View on Github external
gobs      = ephem.Observer()  
    gobs.name = h[0].header['TELESCOP']
    gobs.lat  = rad(latitude)  # lat/long in decimal degrees  
    gobs.long = rad(longitude)
    timeT = h[0].header['UTC-OBS'].split(':')
    if len(timeT[0]) == 1:
        gobs.date = h[0].header['DATE-OBS'][:10] + ' 0' + h[0].header['UTC-OBS']
    else:
        gobs.date = h[0].header['DATE-OBS'][:10] + ' ' + h[0].header['UTC-OBS']
    mephem    = ephem.Moon()
    mephem.compute(gobs)

    Mcoo = jplephem.object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
    Mp = jplephem.barycentric_object_track("Moon", int(mjd), float(mjd%1), 1, 0.0)
    Sp = jplephem.barycentric_object_track("Sun", int(mjd), float(mjd%1), 1, 0.0)
    res  = jplephem.object_doppler("Moon", int(mjd), mjd%1, 1, 0.0)
    lunation,moon_state,moonsep,moonvel = GLOBALutils.get_lunar_props(ephem,gobs,Mcoo,Mp,Sp,res,ra,dec)
    refvel = bcvel_baryc + moonvel
    print '\t\tRadial Velocity of sacttered moonlight:',refvel
    #moon_alts.update({fsim:mephem.alt})
    #moon_ills.update({fsim:lunation})

    print '\t\tExtraction:'

    if mode == 'so':
        sci_fits        = dirout + fsim.split('/')[-1][:-4]+'spec.fits.S'
        sci_fits_simple = dirout + fsim.split('/')[-1][:-4]+'spec.simple.fits.S'

        if ( os.access(sci_fits,os.F_OK) == False ) or ( os.access(sci_fits_simple,os.F_OK) == False ) or \
           ( force_sci_extract ):

            sci_Ss = GLOBALutils.simple_extraction(data,c_all,ext_aperture,\

jplephem

Use a JPL ephemeris to predict planet positions.

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