KPL/FK Mars Atmosphere and Volatile EvolutioN (MAVEN) Frames Kernel - Miscellaneous =============================================================================== This frame kernel contains an additional set of frame definitions for the MAVEN spacecraft, its structures and science instruments. This frame kernel also contains name - to - NAIF ID mappings for MAVEN science instruments and s/c structures (see the last section of the file.) Version and Date ------------------------------------------------------------------------------- Version 0.1 -- April 12, 2014 -- Davin Larson, SEP Team/SSL-UCB Initial Release Contact Information ------------------------------------------------------------------------------- Implementation Notes ------------------------------------------------------------------------------- This file is used by the SPICE system as follows: programs that make use of this frame kernel must ``load'' the kernel, normally during program initialization using the SPICELIB routine FURNSH. This file was created and may be updated with a text editor or word processor. MAVEN Frames ------------------------------------------------------------------------------- The following MAVEN frames are defined in this kernel file: Name Relative to Type NAIF ID ====================== =================== ============ ======= Non Built-in Mars Frames: ------------------------- MAVEN_MME_2000 rel.to J2000 FIXED -202901 Dynamic Frames: --------------- MSO rel.to J2000 DYNAMIC -202911 \begindata FRAME_MSO = -202911 FRAME_-202911_NAME = 'MSO' FRAME_-202911_CLASS = 5 FRAME_-202911_CLASS_ID = -202911 FRAME_-202911_CENTER = 499 FRAME_-202911_RELATIVE = 'J2000' FRAME_-202911_DEF_STYLE = 'PARAMETERIZED' FRAME_-202911_FAMILY = 'TWO-VECTOR' FRAME_-202911_PRI_AXIS = 'X' FRAME_-202911_PRI_VECTOR_DEF = 'OBSERVER_TARGET_POSITION' FRAME_-202911_PRI_OBSERVER = 'MARS' FRAME_-202911_PRI_TARGET = 'SUN' FRAME_-202911_PRI_ABCORR = 'NONE' FRAME_-202911_SEC_AXIS = 'Y' FRAME_-202911_SEC_VECTOR_DEF = 'OBSERVER_TARGET_VELOCITY' FRAME_-202911_SEC_OBSERVER = 'MARS' FRAME_-202911_SEC_TARGET = 'SUN' FRAME_-202911_SEC_ABCORR = 'NONE' FRAME_-202911_SEC_FRAME = 'J2000' \begintext SUNZ rel.to J2000 DYNAMIC -202913 \begindata FRAME_SUNZ = -202913 FRAME_-202913_NAME = 'SUNZ' FRAME_-202913_CLASS = 5 FRAME_-202913_CLASS_ID = -202913 FRAME_-202913_CENTER = 499 FRAME_-202913_RELATIVE = 'J2000' FRAME_-202913_DEF_STYLE = 'PARAMETERIZED' FRAME_-202913_FAMILY = 'TWO-VECTOR' FRAME_-202913_PRI_AXIS = 'Z' FRAME_-202913_PRI_VECTOR_DEF = 'OBSERVER_TARGET_POSITION' FRAME_-202913_PRI_OBSERVER = 'MARS' FRAME_-202913_PRI_TARGET = 'SUN' FRAME_-202913_PRI_ABCORR = 'NONE' FRAME_-202913_SEC_AXIS = 'Y' FRAME_-202913_SEC_VECTOR_DEF = 'OBSERVER_TARGET_VELOCITY' FRAME_-202913_SEC_OBSERVER = 'MARS' FRAME_-202913_SEC_TARGET = 'SUN' FRAME_-202913_SEC_ABCORR = 'NONE' FRAME_-202913_SEC_FRAME = 'J2000' \begintext Spacecraft frame: ----------------- MAVEN_SPACECRAFT rel.to MME_2000 CK -202000 MAVEN Dynamic Frames ------------------------------------------------------------------------------- This section defined dynamic frames of interest to MAVEN science investigations. Spacecraft Bus Frame ------------------------------------------------------------------------------- The spacecraft frame is defined by the s/c design as follows [from 5]: - Z axis is perpendicular to the Launch Vehicle separation plane. The positive z direction is from the separation plane toward/through the High Gain Antenna. - X axis is is in the Launch Vehicle separation plane extending from the origin through the scribe line on the outside diameter of the Launch Vehicle Ring (nominally toward the Articulating Payload Platform). - Y axis completes the right handed frame; - the origin of the frame is in the Launch Vehicle separation plane at the center point of the outside diameter of the Launch Vehicle Ring. These diagrams illustrate the s/c frame: +Z s/c side: ------------ ._____. APP \_____| | | | +Xsc | ^ ._________._________..-----|-----.._________._________. | | || .--|--. || | |> MAG .-| | +Ysc / | \ || | |-. MAG < | | <-------o ||| | | > `-| | \ / || | |-' <|_________|_________|HGA'-----' ||_________|_________| `-----------' .-' | `-. .-' | `-. .-' @ `-. .-' SWEA `-. LPW .-' `-. LPW +Zsc is out of the page. -X s/c side: ------------ *. _ .* MAG `o. HGA .' `. .o' MAG `-. .' `. .-' `-. --------- .-' `-o_________..-----------.._________o-' | | | +Zsc | | ^ | | | | | | | +Ysc `-----|-----' <-------x -'`-. .-' | `-. .-' @ `-. .-' SWEA `-. LPW .-' `-. LPW +Xsc is into the page. Since the S/C bus attitude is provided by a C kernel (see [3] for more information), this frame is defined as a CK-based frame. S/C Alternate Frame ------------------------------------------------------------------------------- This frame is co-aligned with the MAVEN_SSO frame during nominal sun pointing orientation \begindata FRAME_MAVEN_SCALT = -202050 FRAME_-202050_NAME = 'MAVEN_SCALT' FRAME_-202050_CLASS = 4 FRAME_-202050_CLASS_ID = -202050 FRAME_-202050_CENTER = -202 TKFRAME_-202050_SPEC = 'ANGLES' TKFRAME_-202050_RELATIVE = 'MAVEN_SPACECRAFT' TKFRAME_-202050_ANGLES = ( 180.0, -90.0, 90.0 ) TKFRAME_-202050_AXES = ( 1, 2, 1 ) TKFRAME_-202050_UNITS = 'DEGREES' \begintext As seen on the diagram the MAG sensor frames are nominally co-aligned with the corresponding outboard SA panel frames. \begindata FRAME_MAVEN_MAG1 = -202311 FRAME_-202311_NAME = 'MAVEN_MAG1' FRAME_-202311_CLASS = 4 FRAME_-202311_CLASS_ID = -202311 FRAME_-202311_CENTER = -202 TKFRAME_-202311_SPEC = 'ANGLES' TKFRAME_-202311_RELATIVE = 'MAVEN_SA_PY_OB' TKFRAME_-202311_ANGLES = ( 0.0, 0.0, 0.0 ) TKFRAME_-202311_AXES = ( 1, 2, 3 ) TKFRAME_-202311_UNITS = 'DEGREES' FRAME_MAVEN_MAG2 = -202411 FRAME_-202411_NAME = 'MAVEN_MAG2' FRAME_-202411_CLASS = 4 FRAME_-202411_CLASS_ID = -202411 FRAME_-202411_CENTER = -202 TKFRAME_-202411_SPEC = 'ANGLES' TKFRAME_-202411_RELATIVE = 'MAVEN_SA_MY_OB' TKFRAME_-202411_ANGLES = ( 0.0, 0.0, 0.0 ) TKFRAME_-202411_AXES = ( 1, 2, 3 ) TKFRAME_-202411_UNITS = 'DEGREES' \begintext STATIC Frames The STATIC frame -- MAVEN_STATIC, ID -202520 -- is defined as a fixed offset frame with respect to and is nominally co-aligned with the APP frame (see [6]), as shown in this diagram: +X APP side (0.0/-155.0 APP position): -------------------------------------- Nadir FOV +Ystatic ._____. . ^ \ / .-' `. Limb FOV | .-------\ /.-' `. STATIC | .-' .-----' `_. -|-----. | IUVS | | <-------o | | | | | +Zstatic -------' | | | `-. `---- +Yapp -------' | `---.-- ^ ---.------------ | | | | |--. `-- | . | | | | +Zapp _ | _| ' `_______.--' <-------o / NGIMS |_____| | | | | ~ ~ ~ ^ +Xsc | | +Ysc | <-------o +Zsc, +Xapp, and +X static are out of the page. The keywords below define the STATIC frame. \begindata FRAME_MAVEN_STATIC = -202520 FRAME_-202520_NAME = 'MAVEN_STATIC' FRAME_-202520_CLASS = 4 FRAME_-202520_CLASS_ID = -202520 FRAME_-202520_CENTER = -202 TKFRAME_-202520_SPEC = 'ANGLES' TKFRAME_-202520_RELATIVE = 'MAVEN_APP' TKFRAME_-202520_ANGLES = ( 180.0, 0.0, 180.0 ) TKFRAME_-202520_AXES = ( 1, 2, 3 ) TKFRAME_-202520_UNITS = 'DEGREES' \begintext MAVEN NAIF ID Codes -- Definitions ======================================================================== This section contains name to NAIF ID mappings for the MAVEN mission. Once the contents of this file is loaded into the KERNEL POOL, these mappings become available within SPICE, making it possible to use names instead of ID code in the high level SPICE routine calls. Spacecraft: ----------- MAVEN -202 MAVEN_SPACECRAFT -202000 MAVEN_SPACECRAFT_BUS -202000 MAVEN_SC_BUS -202000 The mappings summarized in the table above are implemented by the keywords below. \begindata NAIF_BODY_NAME += ( 'MAVEN_SCALT' ) NAIF_BODY_CODE += ( -202050 ) NAIF_BODY_NAME += ( 'SUNZ' ) NAIF_BODY_CODE += ( -202913 ) NAIF_BODY_NAME += ( 'MAVEN_MAG1' ) NAIF_BODY_CODE += ( -202311 ) NAIF_BODY_NAME += ( 'MAVEN_MAG2' ) NAIF_BODY_CODE += ( -202411 ) NAIF_BODY_NAME += ( 'SIDING_SPRING' ) NAIF_BODY_CODE += ( 1003228 ) NAIF_BODY_NAME += ( 'CSS' ) NAIF_BODY_CODE += ( 1003228 ) \begintext End of FK File.