DOCUMENT 820-13; REV. A DSN SYSTEM REQUIREMENTS DETAILED INTERFACE DESIGN RSC-11-9 DSN RADIO SCIENCE SUBSYSTEM INTERFACE ORIGINAL DATA RECORD (Insert this modular document in 820-13; Rev. A) EFFECTIVE DATE: 1 March 1982 Initial Release Date: 1 March 1982 Approved by: (DSN) (CDE) (COE) A. PURPOSE This module defines and controls the format of the Original Data Record (ODR) generated by the DSS Radio Science Subsystem (DRS) Occultation Data Assembly (ODA). B. REVISION AND CONTROL Revision or changes to the information herein presented may be initiated accordinR to the procedures in Section 1 of this document. C. GENERAL INFORMATION The DRS ODR is delivered via mail to the Network Data Control (NDC) or played back via wideband data lines to the Ground Communications Facility (GCF), where it can be processed in order to produce an Intermediate Data Record (IDR) (reference module IDR-12-1 of this document). 1 820-13; Rev. A RSC-11-9 D. BLOCK FORMATS AND CONTENT There are two type of blocks which have three record lengths each. Table RSC-11-9-1 contains a tabulation of the different block lengths based on the type and the Programmed Oscillator Control Assembly (POCA) converter sample rate. Table RSC-11-9-1. Block Length Tabulation |=================================================================| | | Converter | Number of | Number of | | Conversion | Sample Rate | Samples Per | Words Per | | Type | Per Second | ODR Record* | ODR Record* | |==============|================|================|================| | | 20 k | | | | | | | | | 8-Bit | 10 k | | | | Sample | | | | | | | | | | | 5 k | | | | | | | | | | 2 k | 1000 | 2045 (Y)+ | | | | | | | | 1 k** | 500 | 1045 (Y)+ | | | | | | | | 200** | 100 | 245 (Y)+ | | | | | | | 12-Bit | 10 k | | | | | | | | | | 5 k | 500 | 1545 (Z)+ | | | | | | | | 2 k | | | | | | | | | | 1 k** | 250 | 795 (Z)+ | | | | | | | | 200** | 50 | 195 (Z)+ | |==============|================|================|================| **Effective *Includes 28-Word header and 17-Word PPM trailer (see Figures RSC-11-9-1 and -2) +Last word of data samples 2 820-13; Rev. A RSC-11-9 1. Eight-Bit Analog-to-Digital Converter (A-D) Block Format (See Figure RSC-11-9-1.) WORD 1 BIT 1 Time and Status Validity: Valid 1 Not Valid 0 2 Sequence: Start of sequence block 1 Continuation of sequence block 0 3 Error: Master Tape contains no error 0 Master Tape contains an error 1 4 Conversion: 12-bit conversion 1 8-bit conversion 0 5 thru 8 Compression Factor Type Indicator (Valid Values Only) 0001 = Narrow band, no compression 0010 = Narrow band 2 1010 = Narrow band 10 9 thru 16 Tape Number (Binary) WORD 2 BIT 1 thru 16 Record Number (Binary) WORD 3 BIT 1 thru 16 Record Length : See Table RSC-11-9-1 3 820-13; Rev. A RSC-11-9 BIT WORD |----------------------------------------------------------------------| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | |----------------------------------------------------------------------| 1| VALIDITY | | | SEQUENCE | | | ERROR | | | CONVERSION | | | COMPRESSION FACTOR/TYPE ID | | | TAPE NUMBER | 2| RECORD NUMBER | 3| RECORD LENGTH | 4| SPACECRAFT NUMBER | SOURCE | 5| DAY OF YEAR | 0 0 0 0 0 0 |Time| 6| Time of Day (con't) | 7| PREDICT SET IDENTIFICATION | 8| PREDICT SET ID (con't) | 9| PROGRAMMABLE OSCILLATOR CONTROL ASSEMBLY STATUS | | | POCA FREQUENCY | 10| POCA FREQUENCY (con't) | 11| POCA FREQUENCY (con't) | 12| POCA FREQUENCY (con't) | 13| 0 0 0 0 0 0 0 0 | POCA FREQ RATE | 14| POCA FREQ RATE (con't) | 15| CONVERTER SAMPLE RATE | 16| SIGNAL SELECT | 'N' COUNTER | 17| FREQ COUNTER NO. 1 CUMULATIVE PHASE | 18| FREQ COUNTER NO. 1 CUMULATIVE PHASE (con't) | 19| FREQ COUNTER NO. 1 CUMULATIVE PHASE (con't) | 20| FREQ COUNTER NO. 2 CUMULATIVE PHASE | 21| FREQ COUNTER NO. 2 CUMULATIVE PHASE (con't) | 22| FREQ COUNTER NO. 2 CUMULATIVE PHASE (con't) | 23| TEST SIGNAL |SAMPLE CONTROL |COUNTER NO. 1 MODE| COUNTER NO.2 MODE | 24| SPARES | 25| 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 | 26| '24' COUNTER | '24' COUNTER | 27| 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 | |----------------------------------------------------------------------| Figure RSC-11-9-1. Eight-Bit Conversion Block Format for ODA Temporary ODR (Sheet1 of 2) 4 820-13; Rev. A RSC-11-9 BIT WORD |----------------------------------------------------------------------| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | |----------------------------------------------------------------------| 28| 0 1 1 1 |CONVERTER MODE | 0 1 1 1 | CONVERTER MODE | 29| A-D1 | A-D2 | 30| A-D3 | A-D4 | 31| CONTINUATION OF A-D1 THRU A-D4 | 32| | 33| | 34| | 35| | 36| | 37| | 38| | 39| | 40| | 41| | 42| | ~ ~ 50| | 51| | Y-1| A-D1 (MSB) | A-D2 (MSB) | Y| A-D3 (MSB) | A-D4 (MSB) | Y+1| FILLER | Y+2| FILLER | Y+3| PPM STATUS | Y+4| PPM STATUS BLOCK | | ^ | | | | ~ ~ ~ | | | | v | Y+17| PPM STATUS BLOCK | |----------------------------------------------------------------------| Figure RSC-11-9-1. Eight-Bit Conversion Clock Format for ODA Temporary ODR (Sheet 2 of 2) 5 820-13; Rev. A RSC-11-9 WORD 4 BIT 1 thru 8 Spacecraft Number: Binary (See 820-13; Rev. A, module OPS-6-6 for assignments) 9 thru 16 Source Code: Binary (See 820-13; Rev. A, module OPS-6-6 for assignments) WORD 5 BIT 1 thru 9 Day of Year (Binary representation of decimal 1 through 366) 10 thru 15 Zeros 16 Time of Day (Binary representation of seconds of decimal 0 through 86,399). WORD 6 BIT 1 thru 16 Time of Day (continued) WORD 7 BIT 1 thru 16 Predict Set ID; identificatiin of predicts used to obtain data (see 820-14, module 5-011, Table 1) using four 8-bit ASCII characters WORD 8 BIT 1 thru 16 Predict Set ID (continued) 6 820-13; Rev. A RSC-11-9 WORD 9 POCA Status: BIT Function l(2) O(2) -------- ---- ---- 1 Control Manual Computer* 2 Control Ready* Not Ready 3 Synthesizer Power On* Off 4 Synthesizer In-lock In-Lock* Out-of-Lock 5 Limit Enable On Off* 6 Track On* Off 7 Acquisition On Off* 8 Sweep On* Off 9 thru 16 POCA Frequency (BCD representation of approximately 46 MHz in microhertz) WORD 10 THRU WORD 12 BIT 1 thru 16 POCA Frequency (continued) WORD 13 BIT 1 thru 8 Zeros 9 thru 16 POCA Frequency Rate in Hertz per second (5 BCD digits with fixed point before first digit) WORD 14 BIT 1 thru 12 POCA Frequency Rate in Hertz per second (5 BCD digits with fixed point before first digit) ----------------------- *Normal Radio Science Usage 7 820-13; Rev. A RSC-11-9 WORD 14, continued BIT 13 thru 15 Power of ten multiplier for POCA Frequency Rate 16 Sign for POCA Frequency Rate where 0 = - and 1 = + WORD 15 BIT 1 thru 16 Converter Sample Rate (Binary) WORD 16 BIT 1 thru 8 Signal Select (Binary) SIG1 (J1) 00 Bits 1 and 2 = A-D1 SIG2 (J2) 01 where Bits 3 and 4 = A-D2 SIG3 (J3) 10 Bits 5 and 6 = A-D3 SIG4 (J4) 11 Bits 7 and 8 = A-D4 9 thru 16 'N' Counter (Value determined from the following formula): Converter Sample Rate = 1 x 10^7 -------- 20 M where M = 257-N and N = Contents of bits 9 thru 16 NOTE: Allowable values for M are 250, 125, 100, 50, or 25. WORD 17 THRU WORD 19 BIT 1 thru 16 Frequency Counter Number 1 Cumulative Phase; scaled at 2^-8 Hz (last 8 bits fractional part of 1 Hz) 8 820-13; Rev. A RSC-11-9 WORD 20 THRU WORD 22 BIT 1 thru 16 Frequency Counter Number 2 Cumulative Phase; scaled at 2^-8 Hz (last 8 bits fractional part of 1 Hz) WORD 23 Frequency Counter Status BIT 1 thru 4 Test Signal Selection: 0001 = Live input of Counter 1 (POCA) 0010 = Live input of Counter 2 (not presently connected) 1000 = 1 MHz 5 thru 8 Sample Control Register 1011 = Enable live sample; internal 10 MHz to resolvers and test facilities 9 thru 12 Frequency Counter Number 1 Mode Register 0000 = Test frequency to counter 0001 = Live frequency to counter (POCA) 13 thru 16 Frequency Counter Number 2 Mode Register 0000 = Test frequency to counter 0001 = Live frequency to counter (not presently connected) WORD 24 BIT 1 thru 16 Spares (may be zeros, ones, or combination) WORD 25 BIT 1 thru 16 Zeros WORD 26 BIT 1 thru 8 '20' Counter; always 13(16) (023(8)) 9 thru 16 '20' Counter; same as bits 1 thru 8 9 820-13; Rev. A RSC-11-9 WORD 27 BIT 1 thru 16 Zeros WORD 28 BIT 1 Overflow Indicator: No Overflow 0 Overflow 1 2 thru 4 Ones 5 thru 8 Analog-to-Digital Converter (A-D) Mode as follows: 5 Test Mode: Test 1 Normal 0 6 Short Conversions (A/O): 8-bit 1 12-bit 0 7 and 8 Mode: 00 = 4 signals at 1 times bandwidth (BW) 01 = 1 signals at 4 times BW 10 = 2 signals at 2 times BW 11 = 1 signal at 1 times BW (S-Band) and 3 signals at 3 times BW (X-Band)* 9 thru 16 Repeat of bits 1 thru 8 WORD 29 BIT 1 thru 8 A-D1 Most Significant Bits (MSB) Data Sample 9 thru 16 A-D2 MSB Data Sample ------------------ *S-band A-D1 X-band A-D1 through A-D4 10 820-13; Rev. A RSC-11-9 WORD 30 BIT 1 Thru 8 A-D3 MSB Data Sample 9 thru 16 A-D4 MSB Data Sample WORD 31 THRU WORD 227, 693, or 2027 (Y) BIT 1 thru 16 Data Samples of MSB for A-D1, A-D2, A-D3, and A-D4 in the same sequence as Words 29 and 30 WORD (Y) THRU (Y+17) BIT 1 thru 16 Y+1 thru Y+2 Filler Data Y+3 ODA PPM Status Y+4 thru Y+17 PPM Status Block (See document 820-14, module 2-049) 2. 12-Bit Analog-to-Digital Converter (A-D) Block Format (Reference Figure RSC-11-9-2). WORD 1 THRU WORD 28 BIT 1 thru 16 Same as Word 1 thru Word 28 of 8-bit block WORD 29 THRU WORD 177, 525, or 1527 (Z) BIT 1 thru 16 Data samples of LSB and MSB for A-D1, A-D2, A-D3, and A-D4 WORD (Z) THRU (Z+17) BIT 1 thru 16 Z+1 thru Z+2 Filler Data Z+3 PPM Status Z+4 thru Z+17 PPM Status Block (See document 820-14, module 2-049) 11 820-13; Rev. A RSC-11-9 BIT WORD |----------------------------------------------------------------------| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | |----------------------------------------------------------------------| 1| VALIDITY | | | SEQUENCE | | | ERROR | | | CONVERSION | | | COMPRESSION FACTOR/TYPE ID | | | TAPE NUMBER | 2| RECORD NUMBER | 3| RECORD LENGTH | 4| SPACECRAFT NUMBER | SOURCE | 5| DAY OF YEAR | 0 0 0 0 0 0 |Time| 6| Time of Day (con't) | 7| PREDICT SET IDENTIFICATION | 8| PREDICT SET ID (con't) | 9| PROGRAMMABLE OSCILLATOR CONTROL ASSEMBLY STATUS | | | POCA FREQUENCY | 10| POCA FREQUENCY (con't) | 11| POCA FREQUENCY (con't) | 12| POCA FREQUENCY (con't) | 13| 0 0 0 0 0 0 0 0 | POCA FREQ RATE | 14| POCA FREQ RATE (con't) | 15| CONVERTER SAMPLE RATE | 16| SIGNAL SELECT | 17| FREQ COUNTER NO. 1 CUMULATIVE PHASE | 18| FREQ COUNTER NO. 1 CUMULATIVE PHASE (con't) | 19| FREQ COUNTER NO. 1 CUMULATIVE PHASE (con't) | 20| FREQ COUNTER NO. 2 CUMULATIVE PHASE | 21| FREQ COUNTER NO. 2 CUMULATIVE PHASE (con't) | 22| FREQ COUNTER NO. 2 CUMULATIVE PHASE (con't) | 23| TEST SIGNAL |SAMPLE CONTROL |COUNTER NO. 1 MODE| COUNTER NO.2 MODE | 24| SPARES | 25| 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 | 26| '24' COUNTER | '24' COUNTER | 27| 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 | |----------------------------------------------------------------------| Figure RSC-11-9-2. Twelve-Bit Conversion Block Format for ODA Temporary ODR (Sheet 1 of 2) 12 820-13; Rev. A RSC-11-9 BIT WORD |----------------------------------------------------------------------| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | |----------------------------------------------------------------------| 28| 0 1 1 1 |CONVERTER MODE | 0 1 1 1 | CONVERTER MODE | 29| A-D1 (LSB) | A-D2 (LSB) | A-D3 (LSB) | A-D4 (LSB) | 30| A-D1 (MSB) | A-D2 (MSB) | 31| A-D3 (MSB) | A-D4 (MSB) | 32| CONTINUATION OF A-D1 THROUGH A-D4 MSB AND LSB DATA SAMPLE THROUGH | | WORD Z | 33| | 34| | 35| | 36| | 37| | 38| | ~ ~ 46| | 47| | 48| | 49| | 50| | ~ ~ Z-2| A-D1 (LSB) | A-D2 (LSB) | A-D3 (LSB) | A-D4 (LSB) | Z-1| A-D1 (MSB) | A-D2 (MSB) | Z| A-D3 (MSB) | A-D4 (MSB) | Z+1| FILLER | Z+2| FILLER | Z+3| PPM PROCESSING STATUS | Z+4| PPM DATA BLOCK | | ^ | | | | ~ ~ ~ | | | | v | Y+17| PPM DATA BLOCK | |----------------------------------------------------------------------| Figure RSC-11-9-2. Twelve-Bit Conversion Clock Format for ODA Temporary ODR (Sheet 2 of 2) 13