urn:nasa:pds:cassini-caps-calibrated:data-toflef:toflef_201114506 1.0 1.16.0.0 Product_Observational Wilson, R. J. 2022 This file contains the Level 3 data for CAPS TOFLEF. 2022-02-11 1.0 This product, TOFLEF_201114506_V01.DAT, was originally released as part of the PDS3 CO-E/J/S/SW-CAPS-3-CALIBRATED-V1.0 data set. The metadata have been migrated to PDS4. The data themselves are unchanged. 2011-05-25T06:05:00.766Z 2011-05-25T12:05:32.631Z Science Calibrated Particles Ions Plasma Cassini-Huygens Mission urn:nasa:pds:context:investigation:mission.cassini-huygens data_to_investigation Cassini Orbiter Host urn:nasa:pds:context:instrument_host:spacecraft.co is_instrument_host Cassini Plasma Spectrometer Instrument urn:nasa:pds:context:instrument:caps.co is_instrument Saturn Planet urn:nasa:pds:context:target:planet.saturn data_to_target Solstice Mission 1/1684997617.000 1/1685019249.001 1 50 Ions Count Rate CO-E/J/S/SW-CAPS-3-CALIBRATED-V1.0:TOFLEF_201114506_V01 data_to_calibrated_source_product 10.17189/1519593 PDS Planetary Plasma Interactions Node This is the first version of this product converted to PDS4. The DOI provided references the PDS3 source data set. TOFLEF_201114506_V01.DAT 2013-11-19T09:10:38.000Z 5355528 60f2cdf0672f414876f8aa70d111504a This data file is unmodified from the PDS3 version. 0 74 9 19 72372 UTC 1 ASCII_String 21 UTC timestamp, of format yyyy-dddTHH:MM:SS.sss where yyyy = year, ddd = day of year, HH = hour, MM = minute, SS.sss = decimal seconds to millisecond resolution. Value calculated via SPICE from spacecraft clock time. 0001-001T00:00:00.000 2012-155T00:00:00.000 1999-004T00:00:00.001 DEAD_TIME_METHOD 22 UnsignedByte 1 Dead Time Correction Method 0 = None: Data has not been Dead Time corrected. 1 = On ground (using quantized values). 2 = In flight, corrected prior to any bin summing and prior to quantization for downlink (ELS only). 255 = Unknown. 255 2 0 TELEMETRY 23 UnsignedLSB2 2 Bps Telemetry Downlink Rate (bps). (Independent of Solar Wind Modes) Expected values are 250, 500, 1000, 2000, 4000, 8000, 16000 65535 16000 250 DT 25 IEEE754LSBSingle 4 Seconds Duration of Record (seconds) -1.0 1024.0 256.0 32 1 0 29 128 ACCUMULATION_TIME 1 IEEE754LSBSingle 4 SECONDS ACCUMULATION_TIME of each bin (seconds) -1 28.00000000 3.50000000 16384 1 0 157 65536 DATA 1 IEEE754LSBSingle 4 COUNTS/SECOND TOFLEF data of each bin (Counts per second) Counts per accumulation have been (in order): -Moved to middle of quantization bin -Converted to counts/second. -Maybe Dead time corrected (See DEAD_TIME_METHOD) For TOFLEF data, it is possible a very high count rate could dead time correct to negative counts. If so, all TOF channels at that energy are set to fill. 4294967296.0 1000000.0 0.0 32 1 0 65693 128 DIM1_E 1 IEEE754LSBSingle 4 eV/q 1st Dimension of DATA: Energy - center value (eV/q). Upper and lower limits are given by the objects DIM1_E_UPPER and DIM1_E_LOWER. 65535.0 51000.0 0.0 32 1 0 65821 128 DIM1_E_UPPER 1 IEEE754LSBSingle 4 eV/q 1st Dimension of DATA: Energy - upper limit (eV/q). See DIM1_E for description. 65535.0 51000.0 0.0 32 1 0 65949 128 DIM1_E_LOWER 1 IEEE754LSBSingle 4 eV/q 1st Dimension of DATA: Energy - lower limit (eV/q). See DIM1_E for description. 65535.0 51000.0 0.0 1 1 0 66077 4 DIM2_THETA 1 IEEE754LSBSingle 4 Degrees 2nd Dimension of DATA: Spacecraft Theta - center value. Spacecraft Theta (degs) is analogous to latitude on a sphere. In spacecraft xyz co-ords: +z is equivalent to theta = +90 degs -z is equivalent to theta = -90 degs (The communication dish is directed along -z) xy-plane at z=0 is equivalent to theta = 0 Just 1 anode for TOF data: Anode 1 covers the range -80 to +80 degs This 1 TOF anode covers the same field of view as all 8 SNG anodes. 65535.0 80.0 -80.0 1 1 0 66081 4 DIM2_THETA_UPPER 1 IEEE754LSBSingle 4 Degrees 2nd Dimension of DATA: Spacecraft Theta - upper limit. See DIM2_THETA for description. 65535.0 80.0 -80.0 1 1 0 66085 4 DIM2_THETA_LOWER 1 IEEE754LSBSingle 4 Degrees 2nd Dimension of DATA: Spacecraft Theta - lower limit. See DIM2_THETA for description. 65535.0 80.0 -80.0 1 1 0 66089 4 DIM3_PHI 1 IEEE754LSBSingle 4 Degrees 3rd Dimension of DATA: S/C Phi - representative value. Spacecraft Phi (degs) is analogous to longitude on a sphere. In spacecraft xyz co-ords: +x is equivalent to phi = 0 degs +y is equivalent to phi = 90 degs -x is equivalent to phi = 180 degs -y is equivalent to phi = 270 degs +x is equivalent to phi = 360 degs +y is equivalent to phi = 450 degs The Phi angle varies because of actuator motion, BUT this is NOT the same as actuator angle (ACT) from the level 2 CAPS data: Phi = 270 - ACT This is not a center value but a representative one. Center values are the mid-points between the upper and lower limits, in such cases the upper and lower values are the first and last points of that range: Center value = (lower + upper)/2 In this case the actuator goes back and forth, slows at the edges, such that a mid-point could be lower than both the first and last points if the acuator changed direction during that interval. Phi angles are calculated every second from the start to the end of the intervals duration and then: Representative value = mean(phi angles) The lower limit value = min( phi angles) The upper limit value = max( phi angles) 65535.0 385.0 155.0 1 1 0 66093 4 DIM3_PHI_UPPER 1 IEEE754LSBSingle 4 Degrees 3rd Dimension of DATA: S/C Phi - upper limit. See DIM3_PHI for description. 65535.0 385.0 155.0 1 1 0 66097 4 DIM3_PHI_LOWER 1 IEEE754LSBSingle 4 Degrees 3rd Dimension of DATA: S/C Phi - lower limit. See DIM3_PHI for description. 65535.0 385.0 155.0 512 1 0 66101 2048 DIM4_TOF 1 IEEE754LSBSingle 4 SECONDS 4th Dimension of DATA: Time Of Flight - center value. 65535.0 0.00000160078125 0.0 512 1 0 68149 2048 DIM4_TOF_UPPER 1 IEEE754LSBSingle 4 SECONDS 4th Dimension of DATA: Time Of Flight - upper limit. See DIM4_TOF for description. 65535.0 0.00000160078125 0.0 512 1 0 70197 2048 DIM4_TOF_LOWER 1 IEEE754LSBSingle 4 SECONDS 4th Dimension of DATA: Time Of Flight - lower limit. See DIM4_TOF for description. 65535.0 0.00000160078125 0.0 SC_POS_R 72245 IEEE754LSBSingle 4 Saturn radii Cassini radial distance from Saturn. The non-cruise part of the mission is below 200 Rs. (1 Rs = 60268.0 km) [Values may be greater than VALID_MAX during cruise to Saturn before primary mission.] 65535.0 200.0 0.0 SC_POS_LAT 72249 IEEE754LSBSingle 4 Degrees Cassini Latitude above Saturn. (0 = Equatorial) 65535.0 90.0 -90.0 SC_POS_LOCAL_TIME 72253 IEEE754LSBSingle 4 Hours Cassini Local Time from Saturn. 00 = Midnight 06 = Dawn 12 = Noon 18 = Dusk 65535.0 24.0 0.0 3 1 0 72257 12 SC_POS_SATURN_J2000XYZ 1 IEEE754LSBSingle 4 km Cassini position from Saturn in J2000 cartesian co-ordinates [x,y,z] (units km). [Values may be outside of VALID_MIN/MAX range (~199Rs) during cruise to Saturn before primary mission.] 65535.0 12000000.0 -12000000.0 3 1 0 72269 12 SC_VEL_SATURN_J2000XYZ 1 IEEE754LSBSingle 4 km/s Cassini Velocity with respect to Saturn in J2000 cartesian co-ordinates [Vx,Vy,Vz] (units km/s). 65535.0 40.0 -40.0 3 1 0 72281 12 SC_VEL_ANGULAR_J2000XYZ 1 IEEE754LSBSingle 4 radians/s Cassini Angular Velocity in cartesian co-ordinates [AVx,AVy,AVz] (units radians/s). (This is calculated with the SPICE ckgpav command where ref=J2000. SPICE defines it as 'This is the axisabout which the reference frame tied to the instrument is rotating in the right-handed sense') 65535.0 1.0 -1.0 9 1 0 72293 36 SC_TO_J2000 1 IEEE754LSBSingle 4 Rotation matrix from spacecraft co-ordinates to J2000 This is a 3x3 matrix, expressed here as a 1x9 stream. If the 1D stream is [a,b,c, d,e,f, g,h,i] then the 2D matrix is [a,b,c d,e,f g,h,i] 65535.0 1.0 -1.0 9 1 0 72329 36 J2000_TO_RTP 1 IEEE754LSBSingle 4 Rotation matrix from J2000 co-ordinates to RTP, where RTP is Saturn centered right handed R-Theta-Phi. This is a 3x3 matrix, expressed here as a 1x9 stream. If the 1D stream is [a,b,c, d,e,f, g,h,i] then the 2D matrix is [a,b,c d,e,f g,h,i] 65535.0 1.0 -1.0 AUX_HVU2_ST_DAC 72365 IEEE754LSBSingle 4 Volts High Voltage Unit 2 (HVU2) Straight Through multichannel plate (mcp). 1.0 0.0 -3600.0 AUX_HVU2_LEF_DAC 72369 IEEE754LSBSingle 4 Volts High Voltage Unit 2 (HVU2) Linear Electric Field multichannel plate (mcp). 1.0 0.0 -2400.0