urn:nasa:pds:jno.rss.raw.jugr:data.rsr:grv_jugr_2025290_1550x25k25016kv05 1.0 1.13.0.0 Product_Observational Verma, A. K.; Contreras, J. 2026 JUNO Radio Science Receiver (RSR) File 2026-04-15 1.0 This data file has been migrated from PDS3 PRODUCT_ID GRV_JUGR_2025290_1550X25K25016KV05.RSR in data set JNO-J-RSS-1-JUGR-V1.0 to PDS4. The data file has not been changed; a new PDS4 label was created as part of the migration process. 2025-10-17T15:50:01Z 2025-10-17T18:40:00Z Science Raw JUNO Radio Science Receiver data Radio Science JUNO Mission urn:nasa:pds:context:investigation:mission.juno data_to_investigation JUNO Spacecraft urn:nasa:pds:context:instrument_host:spacecraft.jno is_instrument_host GRAV Instrument urn:nasa:pds:context:instrument:jno.rss is_instrument NASA Deep Space Network Radio Science Instrument urn:nasa:pds:context:instrument:dsn.rss is_instrument Deep Space Network Observatory urn:nasa:pds:context:facility:observatory.dsn is_facility DSS-25 34-m Radio Telescope Telescope urn:nasa:pds:context:telescope:goldstone.dss25_34m is_telescope Jupiter Planet urn:nasa:pds:context:target:planet.jupiter data_to_target urn:nasa:pds:radiosci.documentation:dsn.0159-science:2009-05-18 data_to_document Reference document for the Radio Science Receiver (RSR) data. For data collected earlier or later than this document, consult other document products in the same collection. JNO-J-RSS-1-JUGR-V1.0:GRV_JUGR_2025290_1550X25K25016KV05.RSR data_to_raw_source_product PDS Atmospheres Node The value for external_source_product_identifier is constructed from the PDS3 DATA_SET_ID, an ASCII colon character, and the PDS3 PRODUCT_ID. GRV_JUGR_2025290_1550X25K25016KV05.RSR 2025-10-17T18:40:00.000Z 663408000 35574745b6905ab4f1f43e800d5a144d JUNO Radio Science Receiver (RSR) raw data 0 40800 Raw Radio Science Receiver (RSR) data. 71 1 16260 SFDU Control Authority 1 1 ASCII_String 4 An ASCII string giving the SFDU Control Authority for this data type. Set to "NJPL", meaning the data description information for this type of SFDU is maintained by the NASA/JPL Control Authority. SFDU Label Version ID 2 5 ASCII_String 1 An ASCII character giving the SFDU Label Version Identifier. Set to "2", meaning the length given in bytes 13-20 is formatted as a binary unsigned integer. SFDU Class ID 3 6 ASCII_String 1 An ASCII character giving the SFDU Class Identifier. Set to "I", meaning this is a Compressed Header Data Object (CHDO) structured SFDU. SFDU Reserved 4 7 SignedMSB2 2 These two bytes are not defined. SFDU Data Description ID 5 9 ASCII_String 4 An ASCII string giving the SFDU Data Description Identifier. Set to "C997", a unique identifier for the RSR data type within the NASA/JPL Control Authority. SFDU RSR Length Pad 6 13 UnsignedMSB4 4 The high-order 32 bits of a 64-bit unsigned binary integer giving the number of remaining bytes in the SFDU after the 20-byte label. Always "0" in the RSR SFDU. SFDU RSR Length 7 17 UnsignedMSB4 4 byte The number of remaining bytes in the SFDU after the 20-byte label. Always less than 31000. Header Aggregation CHDO Type 8 21 UnsignedMSB2 2 Header Aggregation CHDO Type. Set to "1", meaning this CHDO is an aggregation of header CHDOs. The NJPL Control Authority maintains a registry of CHDO types. Header Aggregation CHDO Length 9 23 UnsignedMSB2 2 byte Header Aggregation CHDO Length. Set to "232", meaning length of the value field of the Header Aggregation CHDO is 232 bytes (bytes 25-256). Primary Header CHDO Type 10 25 UnsignedMSB2 2 Primary Header CHDO Type. Set to to "2", meaning this CHDO is a primary header CHDO. The NJPL Control Authority maintains a registry of CHDO types. Primary Header CHDO Length 11 27 UnsignedMSB2 2 byte Primary Header CHDO Length. Set to "4", meaning length of the value field of the Primary Header CHDO is 4 bytes (bytes 29-32). Major Data Class 12 29 UnsignedByte 1 Major Data Class. Set to "21", meaning this SFDU contains Radio Science data. Minor Data Class 13 30 UnsignedByte 1 Minor Data Class. Set to "4" if these are Radio Science Receiver data from the DSN. Set to "5" is these are VSR data which have been converted to the RSR format. Mission Identifier 14 31 UnsignedByte 1 Mission Identifier. Set to "0", meaning the RSR does not use this field. The value may be changed if the Ground Data System handles the data. If a Mission Identifier is needed, values may be found in DSN document 820-013, OPS-6-21A, Table 3-4. Format Code 15 32 UnsignedByte 1 Format Code. Set to "0". The RSR supports only one data format. Secondary Header CHDO Type 16 33 UnsignedMSB2 2 Secondary Header CHDO Type. Set to to "104", meaning this CHDO is an RSR secondary header CHDO. The NJPL Control Authority maintains a registry of CHDO types. Secondary Header CHDO Length 17 35 UnsignedMSB2 2 byte Secondary Header CHDO Length. Set to "220", meaning length of the value field of the Secondary Header CHDO is 220 bytes (bytes 37-256). Originator ID 18 37 UnsignedByte 1 Originator Identifier. A value "48" means the data originated within the DSN. A value "123" means these data originated in the JPL Radio Science Systems Group. Last Modifier ID 19 38 UnsignedByte 1 Last Modifier Identifier. A value "48" means the contents of the SFDU were last modified by the DSN. A value "123" means these data were last modified by the JPL Radio Science Systems Group. RSR Software ID 20 39 UnsignedMSB2 2 RSR Software Identifier. The version of the RSR software is indicated by an unsigned binary integer between 0 and 65535. Record Sequence Number 21 41 UnsignedMSB2 2 The Record Sequence Number (RSN) starts at 0 for the first RSR SFDU and increments by 1 for each successive SFDU to a maximum of 65535, after which it resets to 0 and begins incrementing again. The RSN may be reset at other times, such as when the RSR is started or restarted. The RSN is provided by the originator of the SFDU and should not be changed during subsequent handling or modification. Signal Processing Center 22 43 UnsignedByte 1 Signal Processing Center (SPC) Identifer. Valid numbers include 10 Goldstone 40 Canberra 60 Madrid 21 DTF21 Deep Space Station 23 44 UnsignedByte 1 Deep Space Station (DSS) Identifier. This is the DSS identifier listed in the frequency predicts file used to collect the data in this SFDU. DSS identifiers are listed in DSN document 820-013, OPS-6-3 and include valid numbers such as 14, 15, 25, 43, 45, 54, and 63. Radio Science Receiver 24 45 UnsignedByte 1 Radio Science Receiver (RSR) Identifier. Values can be in the range 1-16 and specify the RSR used to collect the data in this SFDU. For example, RSR ID = 1 denotes RSR1A RSR ID = 2 denotes RSR1B RSR ID = 3 denotes RSR2A The SPC ID and RSR ID uniquely specify the hardware used in the data acquisition. SPC 10 has three RSR racks; SPC 40 and SPC 60 each have two. Each rack has two receivers (A and B). Except for the analog components in the ADCs, the end-to-end performance of every RSR should be identical. For data derived from a VSR, the values and their meanings are different. Sub-channel Identifier 25 46 UnsignedByte 1 Sub-Channel Identifier. This can be in the range 1-4 and specifies the RSR sub-channel used to acquire the the data in this SFDU. If the data originated in a VSR, the permissible range is 0-15, assigned as follows: 0 = 1N1 1 = 1N2 2 = 1W1 3 = 1W2 4 = 2N1 ... 15 = 4W2 There are two narrow band (N or NB) subchannels and two wide band (W or WB) subchannels for each of up to 4 channels on each VSR. Secondary Header CHDO Reserved 26 47 UnsignedByte 1 This field is not used. Spacecraft 27 48 UnsignedByte 1 Spacecraft Identifier, as listed in the frequency predicts file used to collect the data in this SFDU. Values are assigned by the Deep Space Mission System (DSMS) and are in the range 0-255. Assignments are given in DSN document 820-013, OPS-6-21A, Table 3-4. Predicts Pass Number 28 49 UnsignedMSB2 2 Predicts Pass Number (range 0-65535) gives the DSN pass number in the predicts file used to collect the data in this SFDU. Uplink Frequency Band 29 51 ASCII_String 1 The Uplink Frequency Band specified in the predicts file used to collect the data in this SFDU. Possible values include: "S" S-Band "X" X-Band "K" Ka-Band Downlink Frequency Band 30 52 ASCII_String 1 The Downlink Frequency Band specified in the predicts file used to collect the data in this SFDU. Possible values include: "S" S-Band "X" X-Band "K" Ka-Band Tracking Mode 31 53 UnsignedByte 1 The Tracking Mode in use when the data in this SFDU were acquired. Possible values are: "S" S-Band "X" X-Band "K" Ka-Band Uplink DSS ID for 3-Way Tracking 32 54 UnsignedByte 1 Deep Space Station (DSS) Identifier for the uplink antenna when TRACKING_MODE=3; otherwise, undefined. DSS identifiers are listed in DSN document 820-013, OPS-6-3 and include valid numbers such as 14, 15, 25, 43, 45, 54, and 63. FGAIN 33 55 SignedByte 1 deciBel per Hertz Expected ratio of signal power to noise power in a one Hz bandwidth when the data in this SFDU were collected. This parameter is used to estimate the sample voltage amplitudes at the RSR output and to compute settings of the sub-channel filter gain so that there is no clipping of the sample values. Possible values are in the range -127 to +128. FGAIN IF Bandwidth 34 56 UnsignedByte 1 megahertz IF Bandwidth expected to be in use by the RSR at the time the data in this SFDU were acquired. This value is used to compute the settings of the sub-channel filter gain. Values can be in the range 1-127. If the data originated in a VSR, this value may be set to "0". FROV Flag 35 57 UnsignedByte 1 Frequency Predicts Override Flag. Set to "0", this indicates that the frequency predicts file was in use; any other value indicates that the frequency specified by the FROV command was in use. The value of the override frequency is given by PREDICTS_FREQUENCY_OVERRIDE in Column 51. DIG Attenuation 36 58 UnsignedByte 1 RSR Digitizer Subassembly (DIG) setting. Values are in the range 0-63, which correspond to 0.5 dB increments in attenuation. DIG ADC RMS 37 59 UnsignedByte 1 Root-mean-square amplitude of about 10000 8-bit samples taken from the DIG ADC stream. Time of the measurement is stored in fields 39-41. DIG ADC Peak 38 60 UnsignedByte 1 Peak amplitude from about 10000 8-bit samples taken from the DIG ADC stream. Time for the measurement is stored in fields 39-41. DIG ADC Year 39 61 UnsignedMSB2 2 UTC year on which the ADC data were computed. Values can range over 1900-3000. If the data originated in a VSR, this field may be set to "0". DIG ADC Day of Year 40 63 UnsignedMSB2 2 UTC day-of-year on which the ADC data were computed. Values can range over 1-366. If the data originated in a VSR, this field may be set to "0". DIG ADC Second 41 65 UnsignedMSB4 4 second UTC second of day on which the ADC data were computed. Values can range over 0-86400. Sample Resolution 42 69 UnsignedByte 1 bit Bits per sample in the data in this SFDU. Valid values are 1, 2, 4, 8, and 16 and are selected by the RSR operator while it is in configure state. Data Error Count 43 70 UnsignedByte 1 Number of hardware errors encountered while the data in this SFDU were being recorded. Values can range over 0-255, but any value greater than 0 indicates data may have been corrupted by hardware errors. Sample Error Rate 44 71 UnsignedMSB2 2 kilosample per second The rate at which samples were collected in this SFDU. Sample rate (or bandwidth) is specified by the operator while the RSR is in the configure state. DDC LO Frequency 45 73 UnsignedMSB2 2 megahertz Digital Down Converter (DDC) Local Oscillator (LO) Frequency. This specifies the downconversion applied to the signal in the DIG and DDC. This frequency is needed to compute the sky frequency of the data in this SFDU: Fsky = RFtoIF_LO + DDC_LO - NCO_Freq + Fresid where RFtoIF_LO is in field 46, DDC_LO is in field 45, NCO_Freq is from fields 61-63, and Fresid is the signal offset from DC in the RSR data. RF-IF LO Frequency 46 75 UnsignedMSB2 2 megahertz RF to IF Down Converter Local Oscillator (LO) Frequency. This specifies the total downconversion applied to the signal before it entered the RSR DIG. The value is subtracted from the RF predict points in order to obtain the frequency of the desired signal at IF. The RSR selects a default value based on the downlink band: 2000 (S-Band), 8100 (X-Band), or 31700 (Ka-Band). This frequency is needed in order to reconstruct the sky frequency of the data contained in this SFDU: Fsky = RFtoIF_LO + DDC_LO - NCO_Freq + Fresid where RFtoIF_LO is in field 46, DDC_LO is in field 45, NCO_Freq is from fields 61-63, and Fresid is the signal offset from DC in the RSR data. SFDU Year 47 77 UnsignedMSB2 2 UTC year for the SFDU data and models. Values can range over 1900-3000. SFDU Day of Year 48 79 UnsignedMSB2 2 UTC day-of-year for the SFDU data and models. Values can range over 1-366. SFDU Second 49 81 IEEE754MSBDouble 8 second UTC seconds of day for the SFDU data and models. Values can range over 0-86400. Predicts Time Shift 50 89 IEEE754MSBDouble 8 The number of seconds added to the time tags of the frequency predicts to shift them in time. This feature allows testing the RSR with old predict files. The value should be 0.0 during normal operations. Predicts Frequency Override 51 97 IEEE754MSBDouble 8 hertz The value of the predicts frequency override specified by the FROV command; this constant value is substituted for the value derived from the predicts. The flag in field 35 indicates whether the frequency override is active. Predicts Frequency Rate 52 105 IEEE754MSBDouble 8 hertz/second The frequency rate added to the RF frequency predicts as specified by the FRR command. The allowable range is -8000 to +8000 hertz/second. Predicts Frequency Offset 53 113 IEEE754MSBDouble 8 hertz The total frequency added to the RF frequency predicts as specified by the FRO command and the accumulated frequency rate as specified by the FRR command. The allowable range is -8 to +8 MHz. Sub-channel Frequency Offset 54 121 IEEE754MSBDouble 8 hertz The frequency added to the frequency predicts for this sub-channel as specified by the SFRO command. RF Point 1 55 129 IEEE754MSBDouble 8 hertz The radio frequency at the beginning of the second as calculated from the predicts. RF Point 2 56 137 IEEE754MSBDouble 8 hertz The radio frequency at the middle of the second as calculated from the predicts. Set to IEEE NaN (hex 7FFFFFFFFFFFFFFF) if not calculable. RF Point 3 57 145 IEEE754MSBDouble 8 hertz The radio frequency at the end of the second as calculated from the predicts. Set to IEEE NaN (hex 7FFFFFFFFFFFFFFF) if not calculable. Sub-channel Frequency Point 1 58 153 IEEE754MSBDouble 8 hertz The sub-channel frequency at the beginning of the second. This point is used to create the sub-channel frequency and phase polynomials. Sub-channel Frequency Point 2 59 161 IEEE754MSBDouble 8 hertz The sub-channel frequency at the middle of the second. This point is used to create the sub-channel frequency and phase polynomials. Set to IEEE NaN (hex 7FFFFFFFFFFFFFFF) if not calculable. Sub-channel Frequency Point 3 60 169 IEEE754MSBDouble 8 hertz The sub-channel frequency at the end of the second. This point is used to create the sub-channel frequency and phase polynomials. Set to IEEE NaN (hex 7FFFFFFFFFFFFFFF) if not calculable. Sub-channel Frequency Coefficient F1 61 177 IEEE754MSBDouble 8 hertz The sub-channel frequency polynomial coefficient F1 where the frequency over a one millisecond interval beginning at t in msec is evaluated F(t) = F1 + F2*((t+0.5)/1000) + F3*((t+0.5)/1000)**2 The coefficients are derived from the frequency points in fields 58-60. Sub-channel Frequency Coefficient F2 62 185 IEEE754MSBDouble 8 hertz The sub-channel frequency polynomial coefficient F2 where the frequency over a one millisecond interval beginning at t in msec is evaluated F(t) = F1 + F2*((t+0.5)/1000) + F3*((t+0.5)/1000)**2 The coefficients are derived from the frequency points in fields 58-60. Set to IEEE NaN (hex 7FFFFFFFFFFFFFFF) if not calculable. Sub-channel Frequency Coefficient F3 63 193 IEEE754MSBDouble 8 hertz The sub-channel frequency polynomial coefficient F3 where the frequency over a one millisecond interval beginning at t in msec is evaluated F(t) = F1 + F2*((t+0.5)/1000) + F3*((t+0.5)/1000)**2 The coefficients are derived from the frequency points in fields 58-60. Set to IEEE NaN (hex 7FFFFFFFFFFFFFFF) if not calculable. Sub-channel Accumulated Phase 64 201 IEEE754MSBDouble 8 cycle The accumulated whole turns of the sub-channel phase at the beginning of the present second. The phase during this second is the accumulated phase incremented by the phase computed using the coefficients in fields 65-68. Sub-channel Phase Coefficient P1 65 209 IEEE754MSBDouble 8 cycle The sub-channel phase polynomial coefficient P1 where the phase over a one millisecond interval beginning at t in msec is evaluated P(t) = P1 + P2*((t+0.5)/1000) + P3*((t+0.5)/1000)**2 + P4*((t+0.5)/1000)**3 The coefficients are derived from the frequency points in fields 58-60. Sub-channel Phase Coefficient P2 66 217 IEEE754MSBDouble 8 cycle The sub-channel phase polynomial coefficient P2 where the phase over a one millisecond interval beginning at t in msec is evaluated P(t) = P1 + P2*((t+0.5)/1000) + P3*((t+0.5)/1000)**2 + P4*((t+0.5)/1000)**3 The coefficients are derived from the frequency points in fields 58-60. Set to IEEE NaN (hex 7FFFFFFFFFFFFFFF) if not calculable. Sub-channel Phase Coefficient P3 67 225 IEEE754MSBDouble 8 cycle The sub-channel phase polynomial coefficient P3 where the phase over a one millisecond interval beginning at t in msec is evaluated P(t) = P1 + P2*((t+0.5)/1000) + P3*((t+0.5)/1000)**2 + P4*((t+0.5)/1000)**3 The coefficients are derived from the frequency points in fields 58-60. Set to IEEE NaN (hex 7FFFFFFFFFFFFFFF) if not calculable. Sub-channel Phase Coefficient P4 68 233 IEEE754MSBDouble 8 cycle The sub-channel phase polynomial coefficient P4 where the phase over a one millisecond interval beginning at t in msec is evaluated P(t) = P1 + P2*((t+0.5)/1000) + P3*((t+0.5)/1000)**2 + P4*((t+0.5)/1000)**3 The coefficients are derived from the frequency points in fields 58-60. Set to IEEE NaN (hex 7FFFFFFFFFFFFFFF) if not calculable. SPARES 69 241 ComplexMSB16 16 cycle These 16 bytes are undefined. Data CHDO Type 70 257 UnsignedMSB2 2 Data CHDO Type. Set to "10", meaning this CHDO contains binary data. The NJPL Control Authority maintains a registry of CHDO types. Data CHDO Length 71 259 UnsignedMSB2 2 byte Data CHDO Length. Gives the number of bytes in the value field of the Data CHDO -- the number of bytes containing I and Q samples. I/Q Pair 1 4000 2 0 Each ITEM contains one 32-bit sample word: quadrature (Q) sample data in the 16 most significant bits (MSBs) followed by in-phase (I) sample data in the 16 least significant bits (LSBs). Within each Q and I word, individual outputs from the analog to digital converters (ADCs) are stored as 1, 2, 4, 8, or 16 bit values in LSB to MSB time order (the sample size is set in Column 42). For example, if the data were collected using 8-bit samples, the arrangement would be BYTES 1-2 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ BITS |1|2|3|4|5|6|7|8|1|2|3|4|5|6|7|8| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |-------Q2------|-------Q1------| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ BYTES 3-4 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ BITS |1|2|3|4|5|6|7|8|1|2|3|4|5|6|7|8| |-------I2------|-------I1------| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ where (Q1,I1) is the earlier sample and (Q2,I2) was taken later. 261 16000 Q 1 1 UnsignedMSB2 2 The imaginary part of a complex data sample I 2 3 UnsignedMSB2 2 The real part of a complex data sample