urn:nasa:pds:voyager2_rss_jupiter_raw:data:vg2j_14mr_1979191t225737 1.0 1.16.0.0 Product_Observational Simpson, R. A. 2023 Voyager 2 DSS-14 S- and X-band RCP open loop data from Jupiter from 1979-07-10T22:57:37.000Z to 1979-07-10T23:04:16.980Z. This product includes the original binary data file plus an ASCII data file with record headers, an ASCII file with column headers for the ASCII header data file, an ASCII file with the open loop S-band data samples, and an ASCII file with the open loop X-band data samples. 2023-12-08 1.0 This data product has been migrated from an Original Data Record (ODR) with identifier VP123A.ODR to PDS4. The original data file has been been parsed into an ASCII file containing record headers and two ASCII files containing data samples. A PDS4 label has been created. 1979-07-10T22:57:37.000Z 1979-07-10T23:04:16.980Z Science Raw Voyager 2 DSS-14 S- and X-band open loop raw data from Jupiter from 1979-07-10T22:57:37.000Z to 1979-07-10T23:04:16.980Z Radio Science Voyager Mission urn:nasa:pds:context:investigation:mission.voyager data_to_investigation Voyager 2 Host urn:nasa:pds:context:instrument_host:spacecraft.vg2 is_instrument_host Radio Science Subsystem Instrument urn:nasa:pds:context:instrument:vg2.rss is_instrument NASA Deep Space Network Host urn:nasa:pds:context:facility:observatory.dsn is_facility DSN Instrumentation Instrument urn:nasa:pds:context:instrument:dsn.rss is_instrument DSS-14 Antenna Telescope urn:nasa:pds:context:telescope:goldstone.dss14_64m is_telescope Jupiter Planet urn:nasa:pds:context:target:planet.jupiter data_to_target urn:nasa:pds:radiosci.documentation:dsn.redr:2021-07-31 data_to_document Reference document for Radio Science open loop data in the REDR fomat as used by Voyager at Jupiter. vp123a.odr 2021-11-09T17:48:27 33840000 d41ad32b054459fa12a72990ff3ce3dd REDR Binary Raw Data 0 20000 Raw Radio Science REDR data. 37 2 1692 Record Year 1 1 UnsignedByte 1 The last two digits of the year in which the data were collected. Record Day of Year 2 2 UnsignedMSB2 2 Day of year in which the data were collected. Record Hour 3 4 UnsignedByte 1 Hour on which the data were collected. Record Minute 4 5 UnsignedByte 1 Minute in which the data were collected. Record Second 5 6 UnsignedMSB2 2 Second in which the data were collected (multiplied by 100). Data Validity Flag 6 8 UnsignedByte 1 A flag indicating whether timing and status information in other fields is valid. Set on even seconds, then propagated to later records within the same second without regard to whether validities have changed (except for value = 2). 0 = good data 1 = bad data 2 = bad data that have been removed and replaced during the archiving process. Bad header/trailer values have been replaced by apparently good values in neighboring records. Bad receiver sample values have been replaced by the value '0', which is approximately the average of the sample values. Sample Rate 7 9 UnsignedMSB4 4 Sample rate (in samples per second) for a single analog-to-digital converter. For Voyager, there were 4 A/D converters; one was assigned to the S-band receiver, and three were assigned to the X-band receiver. The S-band sampling rate was therefore equal to Sample Rate, while the X-band sampling rate was three times larger. Data Samples 1 200 8 0 Each 16-bit word contains one 8-bit two's complement sample in its more significant byte. 13 1600 Sample from ADC-1 (S-band) 1 1 SignedByte 1 One 8-bit signed sample from the first A/D converter. Unused Byte 1 2 2 UnsignedByte 1 One 8-bit byte that is not used and has been set to '0'. Sample from ADC-2 (first X-band sample) 3 3 SignedByte 1 One 8-bit signed sample from the second A/D converter. First X-band sample. Unused Byte 2 4 4 UnsignedByte 1 One 8-bit byte that is not used and has been set to '0'. Sample from ADC-3 (second X-band sample) 5 5 SignedByte 1 One 8-bit signed sample from the third A/D converter. Second X-band sample. Unused Byte 3 6 6 UnsignedByte 1 One 8-bit byte that is not used and has been set to '0'. Sample from ADC-4 (third X-band sample) 7 7 SignedByte 1 One 8-bit signed sample from the fourth A/D converter. Third X-band sample. Unused Byte 4 8 8 UnsignedByte 1 One 8-bit byte that is not used and has been set to '0'. ADC Assignments to Receivers 8 1613 UnsignedBitString 1 Two-bit codes assigning each A/D converter to a receiver. 4 ADC-1 Receiver Assignment 1 1 2 UnsignedBitString The receiver to which the first A/D converter was assigned. 0 = Receiver 1 1 = Receiver 2 2 = Receiver 3 3 = Receiver 4 For Voyager, this value was always 0 (Receiver 1). ADC-2 Receiver Assignment 2 3 4 UnsignedBitString The receiver to which the second A/D converter was assigned. 0 = Receiver 1 1 = Receiver 2 2 = Receiver 3 3 = Receiver 4 For Voyager, this value was always 1 (Receiver 2). ADC-3 Receiver Assignment 3 5 6 UnsignedBitString The receiver to which the third A/D converter was assigned. 0 = Receiver 1 1 = Receiver 2 2 = Receiver 3 3 = Receiver 4 For Voyager, this value was always 1 (Receiver 2). ADC-4 Receiver Assignment 4 7 8 UnsignedBitString The receiver to which the fourth A/D converter was assigned. 0 = Receiver 1 1 = Receiver 2 2 = Receiver 3 3 = Receiver 4 For Voyager, this value was always 1 (Receiver 2). Receiver Mode Selections 9 1614 UnsignedBitString 1 Two-bit codes identifying the mode of each operating receiver. 4 Receiver 1 Mode 1 1 2 UnsignedBitString The band to which Receiver 1 was assigned. 0 = not used 1 = S-band 2 = X-band For Voyager, this value was always 1 (Receiver 1 operated at S-band). Receiver 2 Mode 2 3 4 UnsignedBitString The band to which Receiver 2 was assigned. 0 = not used 1 = S-band 2 = X-band For Voyager, this value was always 2 (Receiver 2 operated at X-band). Receiver 3 Mode 3 5 6 UnsignedBitString The band to which Receiver 3 was assigned. 0 = not used 1 = S-band 2 = X-band For Voyager, this value was always 0 (Receiver 3 was not used). Receiver 4 Mode 4 7 8 UnsignedBitString The band to which Receiver 4 was assigned. 0 = not used 1 = S-band 2 = X-band For Voyager, this value was always 0 (Receiver 4 was not used). Receiver 1 Filter 10 1615 UnsignedByte 1 Identifier for the Receiver 1 filter selection (0-127). For Voyager, always set to '6'. Receiver 2 Filter 11 1616 UnsignedByte 1 Identifier for the Receiver 2 filter selection (0-127). For Voyager, always set to '6'. Receiver 3 Filter 12 1617 UnsignedByte 1 Identifier for the Receiver 3 filter selection (0-127). For Voyager, always set to '0'. Receiver 4 Filter 13 1618 UnsignedByte 1 Identifier for the Receiver 4 filter selection (0-127). For Voyager, always set to '0'. Commanded Frequency 14 1619 UnsignedBitString 6 Two 24-bit unsigned integers that can be combined into a single frequency value (Hz) with about 14 significant digits. 2 Commanded Frequency - High Part 1 1 24 UnsignedBitString The more significant part of Commanded Frequency. Multiply this value by 10, then add it to the Low Part to get Commanded Frequency in Hz. Commanded Frequency - Low Part 2 25 48 UnsignedBitString The less significant part of Commanded Frequency (Hz) Divide this value by 1e6, then add it to the High Part to get Commanded Frequency in Hz. Synthesizer Count 15 1625 UnsignedBitString 6 Two 24-bit unsigned integers that can be combined into a single number with about 14 significant digits (cycles). 2 Synthesizer Count - High Part 1 1 24 UnsignedBitString The more significant part of Synthesizer Count. Multiply this value by 10, then add it to the Low Part to get Synthesizer Count in cycles. Synthesizer Count - Low Part 2 25 48 UnsignedBitString The less significant part of Synthesizer Count. Divide this value by 1000000, then add it to the High Part to get Synthesizer Count in cycles. Ramp Start Frequency 16 1631 UnsignedBitString 6 Two 24-bit unsigned integers that can be combined into a single frequency value (Hz) with about 14 significant digits. 2 Ramp Start Frequency - High Part 1 1 24 UnsignedBitString The more significant part of Ramp Start Frequency. Multiply this value by 10, then add it to the Low Part to get Ramp Start Frequency in Hz. Ramp Start Frequency - Low Part 2 25 48 UnsignedBitString The less significant part of Ramp Start Frequency. Divide this value by 1000000, then add it to the High Part to get Ramp Start Frequency in Hz. POCA Sweep Rate 17 1637 SignedMSB4 4 Hz/s Two's complement value of the POCA sweep rate multiplied by 100000. POCA Status 18 1641 UnsignedBitString 4 POCA status and time offset. 9 POCA Control 1 1 1 UnsignedBitString Control of the POCA is: 0 = computer (expected for normal radio science operation) 1 = manual POCA Readiness 2 2 2 UnsignedBitString POCA is: 0 = not ready 1 = ready (expected for normal radio science operation) Synthesizer Power 3 3 3 UnsignedBitString Synthesizer power is 0 = off 1 = on (expected for normal radio science operation) Synthesizer Lock Status 4 4 4 UnsignedBitString Synthesizer is 0 = out of lock 1 = in lock (expected for normal radio science operation) Limit Enable 5 5 5 UnsignedBitString Limit Enable is: 0 = off (expected for normal radio science operation) 1 = on Track 6 6 6 UnsignedBitString Trackis: 0 = off 1 = on (expected for normal radio science operation) Acquisition 7 7 7 UnsignedBitString Acquisition is: 0 = off (expected for normal radio science operation) 1 = on Sweep 8 8 8 UnsignedBitString Sweep is: 0 = off 1 = on (expected for normal radio science operation) Time Offset 9 9 32 UnsignedBitString Time offset in nanoseconds is the delay through an A/D converter and the associated logic circuitry. It is computed as: 10**9/(20*Sample_Rate) + 460 nanoseconds Sample Size 19 1645 UnsignedMSB4 4 The sample size in bits. For Voyager, alwasy '8'. Unused Bytes 2 20 1 0 Unused bytes. 1649 20 One Unused Byte 1 1 UnsignedByte 1 One unused byte, set to '0'. File Creation Year 20 1669 UnsignedByte 1 Last two digits of File Creation Year. For Voyager, set to '79'. File Creation Day of Year 21 1670 UnsignedMSB2 2 File Creation Day of Year. File Creation Hour 22 1672 UnsignedByte 1 File Creation Hour. File Creation Minute 23 1673 UnsignedByte 1 File Creation Minute. File Creation Second 24 1674 UnsignedByte 1 File Creation Second. Spacecraft ID 25 1675 UnsignedByte 1 Spacecraft ID. 31 = Voyager 1 32 = Voyager 2 DSN Antenna ID 26 1676 UnsignedByte 1 DSN antenna identifier. For example, 14 = 64-meter antenna at Goldstone, CA (DSS-14) 63 = 64-meter antenna near Madrid, Spain (DSS-63) File Start Year 27 1677 UnsignedByte 1 Last two digits of File Start Year. For Voyager, set to '79'. File Start Day of Year 28 1678 UnsignedMSB2 2 File Start Day of Year. File Start Hour 29 1680 UnsignedByte 1 File Start Hour. File Start Minute 30 1681 UnsignedByte 1 File Start Minute. File Start Second 31 1682 UnsignedByte 1 File Start Second. File Stop Year 32 1683 UnsignedByte 1 Last two digits of File Stop Year. Often, set to '0'. File Stop Day of Year 33 1684 UnsignedMSB2 2 File Stop Day of Year. Often set to '0'. File Stop Hour 34 1686 UnsignedByte 1 File Stop Hour. Often set to '0'. File Stop Minute 35 1687 UnsignedByte 1 File Stop Minute. Often set to '0'. File Stop Second 36 1688 UnsignedByte 1 File Stop Second. Often set to '0'. PREDIK Set ID 37 1689 ASCII_String 4 Identifier for the PREDIK set file. vg2j_14mr_1979191t225737.tab 2021-11-09T17:48:27 4900000 effd0fdb90795026e6b1e39953002690 REDR Headers and Trailers in ASCII 0 20000 REDR header and trailer records in ASCII. Line-Feed 34 0 245 Record Number 1 1 ASCII_Integer 6 Record number. This field does not exist in the binary file. It was added for user convenience in tracking records in the ASCII file of header and trailer data. Record Date and Time 2 8 ASCII_Date_Time_DOY 21 The Earth received date and time of the record (UTC). Constructed from fields 2-5 in the binary record. Data Validation Flag 3 30 ASCII_Integer 1 Indicates whether this record has valid time and status information. 0 = good time and status information if Field 2 is an integer second. 1 = bad time and status information if Field 2 is an integer second. 2 = corrupted original record has been replaced by a new record constructed from header and trailer values in nearby records and by setting all receiver sample values to '0'. Extracted from field 6 in the binary record. Sample Rate 4 32 ASCII_Integer 6 Sample rate of a single A/D converter in real samples per second. Set to '10000' for Voyager, meaning that the S-band signal was sampled 10000 times per second and the X-band signal was sampled 30000 times per second. Extracted from Field 7 in the binary record. ADC-1 Receiver Assignment 5 39 ASCII_Integer 1 The receiver to which analog-to-digital converter 1 was assigned. 0 = Receiver 1 1 = Receiver 2 2 = Receiver 3 3 = Receiver 4 For Voyager, always set to '0' (Receiver 1) Extracted from Field 8, Field Bits 1-2 of the binary record. ADC-2 Receiver Assignment 6 41 ASCII_Integer 1 The receiver to which analog-to-digital converter 2 was assigned. 0 = Receiver 1 1 = Receiver 2 2 = Receiver 3 3 = Receiver 4 For Voyager, always set to '1' (Receiver 2) Extracted from Field 8, Field Bits 3-4 of the binary record. ADC-3 Receiver Assignment 7 43 ASCII_Integer 1 The receiver to which analog-to-digital converter 3 was assigned. 0 = Receiver 1 1 = Receiver 2 2 = Receiver 3 3 = Receiver 4 For Voyager, always set to '1' (Receiver 2) Extracted from Field 8, Field Bits 5-6 of the binary record. ADC-4 Receiver Assignment 8 45 ASCII_Integer 1 The receiver to which analog-to-digital converter 4 was assigned. 0 = Receiver 1 1 = Receiver 2 2 = Receiver 3 3 = Receiver 4 For Voyager, always set to '1' (Receiver 2) Extracted from Field 8, Field Bits 7-8 of the binary record. Receiver 1 Mode Selection 9 47 ASCII_Integer 1 The mode (band) selection for Receiver 1. 0 = not used 1 = S-band 2 = X-band For Voyager, always set to '1' (S-band) Extracted from Field 9, Field Bits 1-2 of the binary record. Receiver 2 Mode Selection 10 49 ASCII_Integer 1 The mode (band) selection for Receiver 2. 0 = not used 1 = S-band 2 = X-band For Voyager, always set to '2' (X-band) Extracted from Field 9, Field Bits 3-4 of the binary record. Receiver 3 Mode Selection 11 51 ASCII_Integer 1 The mode (band) selection for Receiver 3. 0 = not used 1 = S-band 2 = X-band For Voyager, always set to '0' (not used) Extracted from Field 9, Field Bits 5-6 of the binary record. Receiver 4 Mode Selection 12 53 ASCII_Integer 1 The mode (band) selection for Receiver 4. 0 = not used 1 = S-band 2 = X-band For Voyager, always set to '0' (not used) Extracted from Field 9, Field Bits 7-8 of the binary record. Receiver 1 Filter 13 55 ASCII_Integer 2 Receiver 1 filter selection (0-126). For Voyager, always set to '6'. Extracted from Field 10 of the binary record. Receiver 2 Filter 14 58 ASCII_Integer 2 Receiver 2 filter selection (0-126). For Voyager, always set to '6'. Extracted from Field 11 of the binary record. Receiver 3 Filter 15 61 ASCII_Integer 2 Receiver 3 filter selection (0-126). For Voyager, always set to '6'. Extracted from Field 12 of the binary record. Receiver 4 Filter 16 64 ASCII_Integer 2 Receiver 4 filter selection (0-126). For Voyager, always set to '6'. Extracted from Field 13 of the binary record. Commanded Frequency 17 67 ASCII_Real 22 Hz Commanded Frequency sent by the POCA to the Dana Synthesizer. Extracted from Field 14 of the binary record. Synthesizer Count 18 90 ASCII_Real 22 cycle Accumulated cycles in output from the Dana Synthesizer after heterodyning with a reference frequency of 40 MHz. Extracted from Field 15 of the binary record. Ramp Start Frequency 19 113 ASCII_Real 22 Hz The initial frequency of the Dana Synthesizer at the beginning of a data acquisition session. Extracted from Field 16 of the binary record. POCA Sweep Rate 20 136 ASCII_Integer 10 The rate at which the POCA frequency changes. The stored value must be divided by 100000 to obtain the actual value in Hertz per second. Extracted from Field 17 of the binary record. POCA Status 21 147 ASCII_Integer 8 An 8-digit ASCII integer in which each digit provides one bit of POCA status. The first (most significant) digit gives the method of POCA control (0 = computer*, 1 = manual, where '*' indicates the expected value for normal radio science operation). The second digit gives the readiness of POCA control (0 = not ready, 1 = ready*). The third digit gives status of synthesizer power (0 = off, 1 = on*). The fourth digit gives synthesizer lock status (0 = out of lock, 1 = in lock*). The fifth digit gives limit enable (0 = off*, 1 = on). The sixth digit gives track status (0 = off, 1 = on*). The seventh digit gives acquisition status (0 = off*, 1 = on). The eighth digit gives sweep status (0 = off, 1 = on*). Extracted from Field 18, Field Bits 1-8 of the binary record. Time Offset 22 156 ASCII_Integer 10 nanosecond Time offset in nanoseconds is the delay through an A/D converter and the associated logic circuitry. It is computed as: 10**9/(20*Sample_Rate) + 460 nanoseconds Extracted from Field 18, Field Bits 9-32 of the binary record. Sample Size 23 167 ASCII_Integer 2 The number of bits in each receiver sample. For Voyager, set to '8'. Extracted from Field 19 of the binary record. Undefined Field 1 of 5 24 170 ASCII_Integer 1 Undefined field. Value set to '0'. Undefined Field 2 of 5 25 172 ASCII_Integer 1 Undefined field. Value set to '0'. Undefined Field 3 of 5 26 174 ASCII_Integer 1 Undefined field. Value set to '0'. Undefined Field 4 of 5 27 176 ASCII_Integer 1 Undefined field. Value set to '0'. Undefined Field 5 of 5 28 178 ASCII_Integer 1 Undefined field. Value set to '0'. File Creation Date and Time 29 180 ASCII_Date_Time_DOY 17 The date and time (UTC) when the file was created. Spacecraft ID 30 198 ASCII_Integer 3 The spacecraft ID: 31 = Voyager 1 32 = Voyager 2 DSN Antenna ID 31 202 ASCII_Integer 2 The DSN antenna identifier: 14 = 64-meter antenna at Goldstone, CA. 63 = 64-meter antenna near Madrid, Spain. File Start Date and Time 32 205 ASCII_Date_Time_DOY 17 The date and time at the beginning of the file. Often accurate only at the hour level. File Stop Date and Time 33 223 ASCII_Date_Time_DOY 17 The date and time at the end of the file. Typically filled with '0' values. PREDIK Set ID 34 241 ASCII_String 4 The identifier for the predict set used for tuning receivers. vg2j_14sr_1979191t225737.tab 2021-11-09T17:48:27 31400000 ee2b07d17e576cf8b674919b19eda18e REDR S-band ASCII Raw Data 0 200000 REDR S-band data samples converted to ASCII. Line-Feed 2 1 157 Original Record Number 1 1 ASCII_Integer 8 The number of the record in the original binary file from which these samples came, counting from 1. Original Sample Number 2 9 ASCII_Integer 8 The number of the first sample in this record as it appeared in the original binary record, counting from 0. Data Samples 1 20 1 0 Each field contains one S-band sample value in the range -128 to +127. 17 140 Sample 1 1 ASCII_Integer 7 One S-band sample from the original binary data record. vg2j_14xr_1979191t225737.tab 2021-11-09T17:48:27 94200000 d0a7b52615ff98ef76a084644004221f REDR X-band ASCII Raw Data 0 600000 REDR X-band data samples converted to ASCII. Line-Feed 2 1 157 Original Record Number 1 1 ASCII_Integer 8 The number of the record in the original binary file from which these samples came, counting from 1. Original Sample Number 2 9 ASCII_Integer 8 The number of the first sample in this record as it appeared in the original binary record, counting from 0. Data Samples 1 20 1 0 Each field contains one X-band sample value in the range -128 to +127. 17 140 Sample 1 1 ASCII_Integer 7 One X-band sample from the original binary data record. vg2j_14mr_1979191t225737.txt 2021-11-09T17:48:27 375 28762fe93521309c86066a752e238a58 Record Header File - Field Headers 0 375 7-Bit ASCII Text This file contains field headers for the ASCII file containing REDR record headers and trailers. There are 34 fixed-width fields, delimited by commas, in the ASCII data file. The 34 field headers in this file are also delimited by commas; but they have variable widths. Record 1 in this file contains column names; record 2 contains value formats. It should be possible to read both the data file with record headers and this file of field headers into a spreadsheet, such as Excel. Line-Feed