BepiColombo SPICE Kernel Dataset Release Notes v1.0.1 =========================================================================== This release notes file describes the status of the mission's SPICE Kernel Dataset for the given version. This version (1.0.1) provides a tag in the BepiColombo Git repository at the SOCCI Bitbucket: https://repos.cosmos.esa.int/socci/projects/SPICE_KERNELS/ Created by Marc Costa Sitja, ESAC/ESA, October 20, 2018. Contact Information -------------------------------------------------------- If you have any questions regarding this file, please contact SPICE support at ESAC: Marc Costa Sitja (+34) 91-8131-457 mcosta@sciops.esa.int, esa_spice@sciops.esa.int Notes -------------------------------------------------------- October 20, 2018 v1.0.1 Release for launch preparations. Updated Fictional SCLK in order to align it with preliminary Step SCLK (due to large offset with previous fictional SCLK). Re-generated all predicted CKs with the updated fictional SCLK. Minor edits in non-kernels files including Cosmographia JSON files. ERRATA: In release v1.0.0 it was announced that MPO_STR-1 frame ID had been corrected but the corrected one was MPO_STR-2. Issues fixed for this release -------------------------------------------------------- [SPICEPCR-170] - SPICE SKD 1.0.0 Bepi, wrong attitude (?) Release History -------------------------------------------------------- October 17, 2018 v1.0.0 This release prepares the SDK for the start of operations. Several files have been renamed, other test SPK, SCLK and CK have been removed. In addition the following updates have been done: - Updated the boresight definition (to unitary) for all STRs in order to avoid an error using GFTFOV with SPICE Toolkit versions earlier than N067. - Corrected MPO_STR-2 frame ID. Updated IDs for MPO-MAG. - Added MPO pre-launch SPK and CK coverage. - Added coordinates of MPO-MAG sensors in the MPO structures SPK. - Regenerated MTM CKs with MPO SCLK for the MTM telemetry will be received via MPO and therefore it will use the same clock as MPO. The MTM FK has been updated accordingly. September 8, 2018 v0.7.0 This release is aimed to publish the kernels for CReMA 5.4. In terms of other developments (PI contracts and Schulte Vector) it should be considered as an intermediate release. This release includes for the first time the Cosmographia configuration items under the misc/cosmo directories. SPK Kernels: CReMA 5.4 is now available. Corrected a bug in the Long Term Science Mission Analysis trajectories derived from the definition that ESOC uses of MJD2000. This bug is not fixed for previous versions of the CReMA (the ORBNUM file has been re-generated accordingly) All the trajectory files for MMO, MTM and MPO have been updated A first draft of the MPO Center of Gravity history SPK has been generated, it contains theoretical evolution of the CoG during all the mission. Re-named MPO Structures file and updated it. Note that this is a working version -mostly due to on-going Schulte Vector implementation. Generated an SPK for the Operational Rehearsals with Svt-1 data. FK kernels: Although this is an intermediate release in terms of FK, it includes the following incorporations: MPO FK: General correction of the SIMBIO-SYS frames. New and updated definition for the following frames; MPO_SIMBIO-SYS_STC_H and MPO_SIMBIO-SYS_STC_L have been separated from the others 6 filters and one more level of the tree has to be created. The values of the filter offsets have been considered only in the frames kernel and and not in the boresights. Implemented update based on Alignment Test by TAS-I for the MIXS_OB frame the BELA reference frames, the MERTIS frame and for the STR and SA frames. Implemented FoV reference frame for PHEBUS. Improvements for Schulte VEctor computation (still draft). MTM FK: Updated MTM ID, corrected several typos and added SEP frame. Added MTM diagrams. Removed MTM_MCAM_MU frame. SCIOPS FK: Added frame definition to generate MPO MOI attitude. IK kernels: BELA: Updated boresight definitions. MERTIS: Added Optical and Detector parameters. PHEBUS: Corrected reference vectors for all FoVs. SERENA: Minor corrections in ELENA main parameters. SIMBIO-SYS: Updated the split version of the STC focal plane. Change in change the definition of the axes in the drawing since the definition of the offsets of the filters have been considered as a rotation with respect the +Y axis and not the +X axis. STR: First version of the Star Trackers Instrument Kernel. MCAM: Updated MTM ID, corrected and serveral typos. Removed duplicate elements. Added Optical parameters. SCLK kernels: Re-generated the MTM SCLK with the new ID. CK Kernels: Added orientation of Solar Electrical Propulsion MTM frame to be able to determine the periods in which the engines are on. Attitude for the Venus fly-by is no longer available with the current CReMA. Attitude added for the MOI from: MOI Operations and Resources (BC-ASD-TN-00390). What has been implemented is what was indicated by Sara de la Fuente: "I have been investigating in the Bepi documentation what will be the default attitude during MOI and below I include what I understand it should be: The spacecraft is rotating around a sun pointed axis close to +X axis at 120 deg/h defined as follows: Rs = (cos^2(6deg), sin (6deg), sin (6deg)cos(6deg))" Updated most of the CKs in accordance to the SPKs, added HGA and MGA test files for Svt-1a. April 9, 2018 v0.5.1 This release is aimed to fix a but on the SKD identified by Harald Krueger (Max Planck) when using the SPKEZR API. Frame kernels: - Recovered Mercury Mean Equator at J2000 Frame which had been left out. - Updated IDs for several frames. Instrument kernels: In general the feedback from most of the Instrument teams has been implemented in the context of the PI contracts. More specifically: SERENA: Corrected SERENA accronym. March 12, 2018 v0.5.0 General items: - This Kernel Dataset Release (SKD) is a milestone for the BepiColombo for it supports obtaining a subset of the SKD with Bit via Bitbucket. The SKD subset can also be obtained from a permanent link to a zipped file. Frame kernels: - Updated SIMBIO-SYS Names, ids and added frames for filters. - Fixed SIXS detector numbering in drawings. Updated SIXS axis definitions and rotation matrices. Updated SIXS-P elevation and azimuth angles. - Corrected IDs for BELA Receiver and Transmitter. - Updated MPO_MAG ids. - Updated Science Frames with inputs from the HEWG and MPO-MAG. Please note that the updates still have to be reviewed. Instrument kernels: In general the feedback from most of the Instrument teams has been implemented in the context of the PI contracts. More specifically: BELA: Corrected several typos and made updates to the instrument description. Updated Receiver and Transmitter IDs. MERTIS: Added Optical and Detector parameters. SIMBIO-SYS: Updates on FoV names an ids, instrument descriptions and FoV definitions have been performed. SIXS: Updated elevation and azimuth angles. Updated SIXS-X FoVs. July 28, 2017 v0.4.4 SPK kernels: - Re-generated Cruise trajectory bc_mcs_mct_50034_20181005_20251219_v03.bsp due to a bug which caused two segments to be excluded - Generated Mercury Orbit Insertion trajectory from information provided by Mission Analysis: bc_mpo_mlt_50034_20251205_20260314_v01.bsp July 17, 2017 v0.4.3 General items: - First implementation of the Schulte Vector calculation with SPICE. Frame kernels: - Incorporated HGA frame definitions, MORE and ISA ephemeris objects for the computation of the so-called "Schulte vector"; indications on how to compute it are provided in the MORE section. Updated MIXS reference frames. Updated MERTIS Base Frame with missalignments from. Updated ISA Unit Opical Aligment Frame definition and several typos in the ISA frames. Instrument kernels: MIXS: Updated IK according to feedback provided by MIXS. SPK kernels: - Re-generated Cruise trajectory bc_mcs_mct_50034_20181005_20251219_v02.bsp as indicated by CReMA 5.3 delivery by Mission Analysis. Fly-by distances and interpolation issues are fixed. - Corrected bug in MMO Cruise trajectory (fixed offset w.r.t MPO) CK kernels: - Generated MMO default attitude for the Science Phase as indicated by SGS: Rotation Axis points to Mercury North Pole with a velocity of 4 seconds per rotation. April 3, 2017 v0.4.2 Updated the MPO frames kernel: - Corrected error in MPO_MIXS-T frame definition. - Updated and added ISA reference frames definitions. - Added draft Schulte Vector reference frame for MORE. March 2, 2017 v0.4.1 General items: - Updated several aareadme files from several kernel specific directories as suggested by Joe Zender. - Added a first sample of an ORBNUM file under the ../misc/orbnum directory. Find more information on the relevant aareadme file. Frame kernels: - Added a STROFIO frame in order to implement CK dependency for the FoV. Corrected several typos. - Extended MMO frames kernel with basic S/C frame definitions and added draft MPPE frames for Venus flyby studies. Instrument kernels: MPPE: Generated draft kernel for Venus flyby studies. SERENA: Added FOV definition for STROFIO CK dependent frame. SPK kernels: - Re-generated Cruise trajectory by smoothing interpolation errors in the first Venus flyby. The input file from Mission Analysis has been processed in order to mantain a constant step during the flyby. CK kernels: - Generated a CK for each study case of the Venus flyby studies. Find more information in the comment area of the kernels. February 16, 2017 v0.4.0 This is a major release that implements important changes and represents a milestone in the BepiColombo SPICE kernel dataset. It can be understood as the first consolidated release. General items: - Moved kernels from the misc directory to the 'kernels' directory. From: ftp://spiftp.esac.esa.int/data/SPICE/BEPICOLOMBO/misc/kernels to: ftp://spiftp.esac.esa.int/data/SPICE/BEPICOLOMBO/kernels Pre-operational kernels were placed originaly in the misc directory to account for their "draft" nature and emphasize the message that the kernels were not operational. Since this dataset is already used for science operations and considering that a consolidated and peer-reviewed kernel dataset will be published in the PSA, the ESA SPICE Services sees no use un not having them in the nominal directory of the SPICE FTP Server. - Removed 'former_versions' directories. In order to facilitate a more one-to-one correspondance with SPICE Archives, following the advice from NAIF and in order to improve and make the meta-kernel management easier: earlier versions of files which have or have not been included in a meta-kernel will NOT be moved to the former_versions directory in the FTP as they used to. Instead all files will be kept in the directory and file management will be done solely via the meta-kernel. This change is applied retroactively. This does not apply to the meta-kernel directory. MPO frames: - Major update in MPO frames kernel. Implementation summary follows. Corrected diagrams and descriptions. Updated all instrument frames and added MPO_SERENA, MPO_PHEBUS and MPO_ISA frames. Added references to MPO Science Operations frames. Replaced SIMBIOSYS references to SIMBIO-SYS. Removed MMO ID and frame definitions from the MPO frames kernel - Added the following frame kernels: bc_mmo_v00.tf Initial draft of the frame kernel for MMO. bc_ops_v00.tf Frame (FK) SPICE kernel file for BC. bc_mpo_sc_mer_npo_v00.tf Science operations frames kernel file for MPO Spacecraft Mercury-Nadir Power Optimized Instrument kernels: BELA: Added instrument description and corrected FOV definitions. MERTIS: Updated instrument description and added main parameters table. MIXS: Updated instrument description and added main parameters table. PHEBUS: Generated first version of the IK. SERENA: Generated first version of the IK. SIMBIO-SYS: Updated instrument description. Added FOV and sensor definitions for STC-L and STC-H filters and updated the rest of the definitions. Replaced SIMBIOSYS references by SIMBIO-SYS. SIXS: Updated instrument description and added Detector Layouts section. Corrected boresight definitions of the FOVs to align it with MPO frames kernel. SPK kernels: - Updated filename scheme by simplifying the reference to the MAn original file. - Added latest MPO and MMO trajectories delivered by Man. CK kernels: - Generated attitude timeline for MPO for the latest cruise phase and for the science phase. December 14, 2016 v0.3.1 This release is motivated by an interpolation issue found on the latest generated SPK by Luciano Iess (luciano.iess@uniroma1.it): bc_mcs_mct_esc_df_50034_6863_20181016_20251205_v01.bsp Since the original OEM file has segments with different origins (Sun, Venus, Earth...) and the file OEM has a coarse resolution this has lead to interpolation issues. A new version of the SPK has been produced using an ASCII Table provided by Mission Analysis of the same trajectory. Updated MPO FK with corrected and updated MPO_SIMBIOSYS and MPO_SIXS frames. Updated SIXS instrument kernel accordingly. November 25, 2016 v0.3.0 Updated MPO frames kernel with corrected diagrams and minor edits. Updated and added MPO_SIMBIOSYS and MPO_BELA, MPO_MERTIS frame definitions. Added MPO_PHEBUS frame definitions. Changed filenames for the SPKs removing the MPO, MCS, MMO refernence from the name and adding MCS to the spacecraft accronym list. Added latest trajectory with an October 2018 launch: bc_mcs_mct_esc_df_50034_6863_20181016_20251205_v01.bsp IMPORTANT DISCLAIMER: This invalidates the default attitude profile for the Cruise Phase provided by: bc_mpo_sct_mcs_cruise_20180417_20241218_f20150124_v02.bc November 3, 2016 v0.2.0 Updated diagrams for MPO Spacecraft frame. Added description for SA frame and corrected its definition. Completed MPO HGA frames and added new definitions. Added MPO Medium Gain Antenna frames. Added MPO Low Gain Antenna frames and MPO Star Tracker frames. Updated minor edits as well. Added corresponding NAIF ID definitions. Generated default CKs for MAG Boom, MGA boom, MGA and HGA. September 22, 2016 v0.1.0 This first release includes the last snapshot of the BepiColombo dataset in ftp://ssols01.esac.esa.int/pub/data/SPICE/BEPI/misc/kernels/ Since the file name update includes a change in the versioning strategy the former version of the FK files and the IK files have been also modified. The dataset has been updated with the new ID for BEPICOLOMBO MPO from -69 to -121. The new file name convention has also been applied. A 'bug' has been discovered in the MPO SPK. The problem was caused by my SPK production script considering the fractional seconds part of time-tag as milli-seconds instead of micro-seconds. This has been corrected. End of text file.