Commit c38386dd authored by paarongiroux's avatar paarongiroux Committed by Jesse Mapel
Browse files

Added ISIS label Naif spice driver for Viking (#286) 

* added viking isislabel datanaif driver, tests and test data

* cleaned up tests

* cleaned up tests part II: Electric Boogaloo

* added logic for vo2

* fixed logic

* added load tests and data for vo2 cam a & b, vo1 cam a

* cleaned up driver and tests, added another ephemeris_start_time test to hit else branch
parent 05f017d8

ale/drivers/viking_drivers.py

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Original line number Diff line number Diff line 
import spiceypy as spice



import ale

from ale.base.data_naif import NaifSpice

from ale.base.label_isis import IsisLabel

from ale.base.type_sensor import Framer

from ale.base.base import Driver



class VikingIsisLabelNaifSpiceDriver(Framer, IsisLabel, NaifSpice, Driver):



    @property

    def spacecraft_name(self):

        """

        Overridden to work with spice calls.



        Returns

        -------

        : str

          Name of the spacecraft.

        """

        name_lookup = {

            'VIKING_ORBITER_1': 'VIKING ORBITER 1',

            'VIKING_ORBITER_2': 'VIKING ORBITER 2'

        }



        return name_lookup[super().spacecraft_name]



    @property

    def alt_ikid(self):

        """

        Viking Orbiter 1 & 2 each have an alternate naif id code as defined in the

        SCLK kernels.

        Expects spacecraft name to be defined.

        Returns -27999 for vo1 and -30999 for vo2



        Returns

        -------

        : integer

        Alternate Naif Integer ID code for the instrument

        """



        alt_id_lookup = {

            'VIKING ORBITER 1': -27999,

            'VIKING ORBITER 2':-30999

        }



        return alt_id_lookup[self.spacecraft_name]



    @property

    def ikid(self):

        """

        Overridden to grab the ikid from the Isis Cube since there is no way to

        obtain this value with a spice bods2c call.



        Returns

        -------

        : integer

          Naif Integer ID code for the instrument

        """

        return self.label['IsisCube']['Kernels']['NaifFrameCode']



    @property

    def ephemeris_start_time(self):

        """

        Overridden to use the alternate instrument ID. Also computes an offset to match

        what is being done in ISIS code.

        Expects spacecraft_clock_start_count to be defined.



        Returns

        -------

        : float

          ephemeris start time of the image

        """

        ephemeris_start_time = spice.scs2e(self.alt_ikid, str(self.spacecraft_clock_start_count))



        if self.exposure_duration <= .420:

            offset1 = 7.0 / 8.0 * 4.48

        else:

            offset1 = 3.0 / 8.0 * 4.48

        offset2 = 1.0 / 64.0 * 4.48



        return ephemeris_start_time + offset1 + offset2

tests/pytests/data/f004a47/f004a47_0.xsp

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DAFETF NAIF DAF ENCODED TRANSFER FILE

'DAF/SPK '

'2'

'6'

'SPKMERGE                                                    '

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'34D15D935EA536^-5'

'18A900D4EA963^-5'

'7B883FA42AF96^-7'

'60AFCF493791D^-6'

'-571A5E2879FB9C^-6'

'-264C9483AC3B3A^-6'

'E20936B2CB705^-7'

'277B4FA72EF02^-7'

'-E285F3AA384D48^-8'

'0^0'

'4E72B8D9639FC^-7'

'7E334823A4778^-6'

'3DAE2A60FD54^-6'

'-31D45E2B743A88^-6'

'-8499D0FEBB5B3^-7'

'458B1168017688^-7'

'68FB43AA201968^-9'

'0^0'

'-11F3AB7EC77A6^-7'

'CD55EC95D13A4^-7'

'51F2F334E5BD68^-6'

'-520EDA2FB4A4D4^-7'

'-C61ECDCEFB0E88^-7'

'F0613CA585C81^-8'

'82EFB587B5BF^-8'

'0^0'

'-2C3F03A^8'

'546^4'

'32^2'

'1^1'

END_ARRAY 4 54

TOTAL_ARRAYS 4

 ~NAIF/SPC BEGIN COMMENTS~

; /home/pgiroux/Desktop/f004a47/f004a47_0.bsp LOG FILE



; Created 2019-09-30/09:31:27.00.

;

; BEGIN SPKMERGE COMMANDS



LEAPSECONDS_KERNEL   = /usgs/cpkgs/isis3/data/base/kernels/lsk/naif0012.tls



SPK_KERNEL           = /home/pgiroux/Desktop/f004a47/f004a47_0.bsp

  SOURCE_SPK_KERNEL  = /usgs/cpkgs/isis3/data/viking1/kernels/spk/viking1a.bsp

    INCLUDE_COMMENTS = NO

    BODIES           = -27

    BEGIN_TIME       = 1976 JUN 23 18:11:38.484

    END_TIME         = 1976 JUN 23 18:58:47.261

  SOURCE_SPK_KERNEL  = /usgs/cpkgs/isis3/data/base/kernels/spk/mar097.bsp

    INCLUDE_COMMENTS = NO

    BODIES           = 4, 10, 499

    BEGIN_TIME       = 1976 JUN 23 18:11:38.484

    END_TIME         = 1976 JUN 23 18:58:47.261



; END SPKMERGE COMMANDS

 ~NAIF/SPC END COMMENTS~

tests/pytests/data/f004a47/f004a47_isis3.lbl

0 → 100644
+105 −0
Original line number Diff line number Diff line 
Object = IsisCube

  Object = Core

    StartByte   = 65537

    Format      = Tile

    TileSamples = 1204

    TileLines   = 1056



    Group = Dimensions

      Samples = 1204

      Lines   = 1056

      Bands   = 1

    End_Group



    Group = Pixels

      Type       = UnsignedByte

      ByteOrder  = Lsb

      Base       = 0.0

      Multiplier = 1.0

    End_Group

  End_Object



  Group = Instrument

    SpacecraftName       = VIKING_ORBITER_1

    InstrumentId         = VISUAL_IMAGING_SUBSYSTEM_CAMERA_A

    TargetName           = MARS

    StartTime            = 1976-06-23T18:42:11

    ExposureDuration     = 0.012730 <seconds>

    SpacecraftClockCount = 25973540

    FloodModeId          = ON

    GainModeId           = HIGH

    OffsetModeId         = OFF

  End_Group



  Group = Archive

    DataSetId       = VO1/VO2-M-VIS-2-EDR-V2.0

    ProductId       = 004A47

    MissonPhaseName = PRIMARY_MISSION

    ImageNumber     = 25973540

    OrbitNumber     = 4

  End_Group



  Group = BandBin

    FilterName = CLEAR

    FilterId   = 4

    Center     = 0.52 <micrometers>

    Width      = 0.35 <micrometers>

  End_Group



  Group = Kernels

    NaifFrameCode = -27001

    CameraVersion = 1

  End_Group





  Group = Reseaus

    Line     = (4, 8, 11, 13, 15, 17, 18, 20, 21, 22, 23, 132, 134, 137, 139,

                141, 143, 145, 147, 148, 150, 151, 152, 260, 264, 266, 268,

                270, 272, 274, 276, 277, 279, 281, 389, 391, 394, 396, 398,

                400, 401, 403, 405, 407, 408, 409, 518, 521, 523, 526, 528,

                529, 531, 532, 534, 536, 538, 647, 648, 651, 653, 655, 657,

                658, 660, 662, 663, 665, 666, 776, 779, 781, 783, 785, 786,

                788, 789, 790, 792, 794, 906, 907, 909, 911, 913, 914, 915,

                917, 918, 920, 922, 923, 1035, 1037, 1039, 1040, 1042, 1043,

                1044, 1046, 1047, 1048, 1051)

    Sample   = (18, 137, 255, 372, 489, 605, 721, 837, 954, 1070, 1187, 20,

                79, 197, 314, 431, 547, 663, 779, 895, 1011, 1127, 1186, 20,

                139, 256, 373, 490, 605, 721, 837, 953, 1069, 1185, 21, 81,

                199, 316, 432, 548, 663, 779, 895, 1010, 1126, 1184, 22, 141,

                257, 374, 489, 605, 721, 836, 952, 1068, 1184, 22, 82, 199,

                316, 431, 547, 663, 778, 893, 1009, 1125, 1183, 22, 141, 257,

                373, 489, 604, 719, 835, 950, 1066, 1182, 22, 81, 198, 314,

                430, 545, 660, 776, 891, 1007, 1123, 1181, 20, 138, 255, 371,

                486, 602, 717, 832, 948, 1064, 1180)

    Type     = (1, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5,

                5, 6, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 4, 5, 5, 5, 5, 5, 5, 5,

                5, 5, 5, 6, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 4, 5, 5, 5, 5, 5,

                5, 5, 5, 5, 5, 6, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 4, 5, 5, 5,

                5, 5, 5, 5, 5, 5, 5, 6, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6)

    Valid    = (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)

    Template = $viking1/reseaus/vo1.visa.template.cub

    Status   = Nominal

  End_Group

End_Object



Object = Label

  Bytes = 65536

End_Object



Object = History

  Name      = IsisCube

  StartByte = 1336961

  Bytes     = 428

End_Object



Object = OriginalLabel

  Name      = IsisCube

  StartByte = 1337389

  Bytes     = 2052

End_Object



End

tests/pytests/data/f004a47/f004a47_pds3.lbl

0 → 100644
+1633 −0

File added.

Preview size limit exceeded, changes collapsed.

tests/pytests/data/f004a47/naif0012.tls

0 → 100644
+152 −0
Original line number Diff line number Diff line 
KPL/LSK





LEAPSECONDS KERNEL FILE

===========================================================================



Modifications:

--------------



2016, Jul. 14   NJB  Modified file to account for the leapsecond that

                     will occur on December 31, 2016.



2015, Jan. 5    NJB  Modified file to account for the leapsecond that

                     will occur on June 30, 2015.



2012, Jan. 5    NJB  Modified file to account for the leapsecond that

                     will occur on June 30, 2012.

                     

2008, Jul. 7    NJB  Modified file to account for the leapsecond that

                     will occur on December 31, 2008.

                     

2005, Aug. 3    NJB  Modified file to account for the leapsecond that

                     will occur on December 31, 2005.

                     

1998, Jul  17   WLT  Modified file to account for the leapsecond that

                     will occur on December 31, 1998.

                     

1997, Feb  22   WLT  Modified file to account for the leapsecond that

                     will occur on June 30, 1997.

                     

1995, Dec  14   KSZ  Corrected date of last leapsecond from 1-1-95

                     to 1-1-96.



1995, Oct  25   WLT  Modified file to account for the leapsecond that

                     will occur on Dec 31, 1995.



1994, Jun  16   WLT  Modified file to account for the leapsecond on

                     June 30, 1994.



1993, Feb. 22  CHA   Modified file to account for the leapsecond on

                     June 30, 1993.



1992, Mar. 6   HAN   Modified file to account for the leapsecond on

                     June 30, 1992.



1990, Oct. 8   HAN   Modified file to account for the leapsecond on 

                     Dec. 31, 1990.  





Explanation:

------------



The contents of this file are used by the routine DELTET to compute the 

time difference



[1]       DELTA_ET  =  ET - UTC                                         

          

the increment to be applied to UTC to give ET. 



The difference between UTC and TAI,



[2]       DELTA_AT  =  TAI - UTC



is always an integral number of seconds. The value of DELTA_AT was 10

seconds in January 1972, and increases by one each time a leap second

is declared. Combining [1] and [2] gives



[3]       DELTA_ET  =  ET - (TAI - DELTA_AT)



                    =  (ET - TAI) + DELTA_AT



The difference (ET - TAI) is periodic, and is given by



[4]       ET - TAI  =  DELTA_T_A  + K sin E 



where DELTA_T_A and K are constant, and E is the eccentric anomaly of the 

heliocentric orbit of the Earth-Moon barycenter. Equation [4], which ignores 

small-period fluctuations, is accurate to about 0.000030 seconds.



The eccentric anomaly E is given by 



[5]       E = M + EB sin M



where M is the mean anomaly, which in turn is given by 



[6]       M = M  +  M t

               0     1



where t is the number of ephemeris seconds past J2000.



Thus, in order to compute DELTA_ET, the following items are necessary.



          DELTA_TA

          K

          EB

          M0

          M1

          DELTA_AT      after each leap second.



The numbers, and the formulation, are taken from the following sources.



     1) Moyer, T.D., Transformation from Proper Time on Earth to 

        Coordinate Time in Solar System Barycentric Space-Time Frame

        of Reference, Parts 1 and 2, Celestial Mechanics 23 (1981),

        33-56 and 57-68.



     2) Moyer, T.D., Effects of Conversion to the J2000 Astronomical

        Reference System on Algorithms for Computing Time Differences

        and Clock Rates, JPL IOM 314.5--942, 1 October 1985.



The variable names used above are consistent with those used in the 

Astronomical Almanac.



\begindata



DELTET/DELTA_T_A       =   32.184

DELTET/K               =    1.657D-3

DELTET/EB              =    1.671D-2

DELTET/M               = (  6.239996D0   1.99096871D-7 )



DELTET/DELTA_AT        = ( 10,   @1972-JAN-1

                           11,   @1972-JUL-1     

                           12,   @1973-JAN-1     

                           13,   @1974-JAN-1     

                           14,   @1975-JAN-1          

                           15,   @1976-JAN-1          

                           16,   @1977-JAN-1          

                           17,   @1978-JAN-1          

                           18,   @1979-JAN-1          

                           19,   @1980-JAN-1          

                           20,   @1981-JUL-1          

                           21,   @1982-JUL-1          

                           22,   @1983-JUL-1          

                           23,   @1985-JUL-1          

                           24,   @1988-JAN-1 

                           25,   @1990-JAN-1

                           26,   @1991-JAN-1 

                           27,   @1992-JUL-1

                           28,   @1993-JUL-1

                           29,   @1994-JUL-1

                           30,   @1996-JAN-1 

                           31,   @1997-JUL-1

                           32,   @1999-JAN-1

                           33,   @2006-JAN-1

                           34,   @2009-JAN-1

                           35,   @2012-JUL-1

                           36,   @2015-JUL-1 

                           37,   @2017-JAN-1 )



\begintext