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Pipeline Data Series Specifications

averages – (ring diagram) averages of tile power spectra

Data Series class
temporal averages of power spectra for tracked tiles
Data Series included
Individual Data Series notes
The series for averages of the power spectra for 15° and 30° tiles are complete for the mission. Those for the 5° tiles exist only for CR 2161–2180 and 2188 going forward (as of 28 Dec 2017).

Note that there is no segment in the data series representing the count of valid values. With the exception of the first partial rotation, 2196 (8) and CR 2172 and 2180 (11), there are always 12 contributing samples to the 30° averages. The 15° averages always have 24 contributing samples except for CR 2196 (16), several for which the number is 23 (2099, 2103, 2115, 2136, 2162, 2172, 2175, and 2178), and one, 2180, for which it is 20. For series hmi.rdVavgpspec_fd05, the Carrington rotations with N samples are:

Module datavg versions used in producing definitive data, by Carrington rotation:

Data Record organization
Individual records correspond to the averages of the input power spectra (3-d cubes) for the record interval comprehended by the prime key values, i.e. over a Carrington rotation for the tiles at a given latitude and longitude with respect to centrla meridian (at the middle of the tracking/analysis interval!).

Data Segments
The data segments are expected to include up to three segments of the same form as those of the input records, stored as either bin or fits protocol files, to contain the mean, the variance and the count of valid values, respectively, although the scaling and offset values are likely to be different from one another and those of the mean from those of the input records. In particular, the data for the variance and count should be offset for maximum precision, as no negative values are possible. (unless the variance/power is represented as its log!). An additional generic protocol segment is optional; if present, it may be used to record textual information about the input records processed. For a discussion of the various segment protocols, see segments.

Prime Keywords and slotting 
name        type   unit		comment

CarrRot     int    —		Carrington rotation at MidTime
LatHG       float  deg		Latitude of tracked region center
LonCM       float  deg		CM (Stonyhurst) Longitude of region center at MidTime

LatHG_base, float  deg		LatHG index base
LatHG_step, float  deg		LatHG index step
LonCM_base, float  deg		LonCM index base
LonCM_step, float  deg		LonCM index step
Sample JSOC Series Definition 
#=====General Series Information=====
Seriesname:      	hmi.rdVavgpspec_fd30
Description:		"Averages of power spectra of 30-deg cubes on ring-diagram synoptic grid over full CR"
Author:          	"Rick Bogart"
Archive:         	1
Unitsize:		1
Retention:       	1800
Tapegroup:       	311
PrimeKeys:       	CarrRot, LatHG, LonCM
DBIndex:		CarrRot, LatHG, LonCM
Version:		2.1

#=====Links=====

#=====Keywords=====

Keyword: CarrRot,  int,    variable, record, -1,  %d,     NA, "Carrington rotation at MidTime"
Keyword: LatHG,    float,  slot,     record, NaN, %+05.1f, deg, "Latitude of tracked region center"
Keyword: LonCM,    float,  slot,     record, NaN, %+05.1f, deg, "CM (Stonyhurst) Longitude of region center at MidTime"

Keyword: CRPIX1,   float,  variable, record, NaN, %.2f, NA, "WCS reference pixel location"
Keyword: CRPIX2,   float,  variable, record, NaN, %.2f, NA, "WCS reference pixel location"
Keyword: CDELT1,   float,  variable, record, NaN, %13.6e, Mm-1/voxel, "WCS coordinate increment at reference point"
Keyword: CDELT2,   float,  variable, record, NaN, %13.6e, Mm-1/voxel, "WCS coordinate increment at reference point"
Keyword: CDELT3,   float,  variable, record, NaN, %13.6e, sec-1/voxel, "WCS coordinate increment at reference point"
Keyword: DELTA_K,  float,  variable, record, NaN, %13.6e, Mm-1, "delta-k (from first record)"
Keyword: DELTA_NU, float,  variable, record, NaN, %.5f, "uHz", "delta-freq (from first record)"
Keyword: D_OMEGA,  float,  variable, record, NaN, %13.6e, "sec-1", "delta-omega (from first record)"
Keyword: DataRecs, int,    variable, record, 0, %d, NA, "Number of valid input records"
Keyword: MissRecs, int,    variable, record, 0, %d, NA, "Number of skipped input records"
Keyword: Module,   string, variable, record, unknown, %s, NA, "Creation module"
Keyword: Source,   string, variable, record, unknown, %s, NA, "Input data source"
Keyword: Input,    string, variable, record, unknown, %s, NA, "Input data records"
Keyword: Created,  time,   variable, record, JD_0, -1, ISO, "Creation time"
Keyword: HISTORY,  string, variable, record, "", %s, NA, "Record modification history"
Keyword: BLD_VERS, string, variable, record, unknown, %s, NA, "JSOC library build"
Keyword: LOG_BASE, double ,variable, record, NaN, %18.12e, NA, "log base for power spectral density"
Keyword: MeanMIN,  float,  variable, record, nan, %.2f, ln(m/s), "Minimum value in Mean image"
Keyword: MeanMAX,  float,  variable, record, nan, %.2f, ln(m/s), "Maximum value in Mean image"
Keyword: MeanAVG,  float,  variable, record, nan, %.2f, ln(m/s), "Mean value of Mean image"
Keyword: MeanRMS,  float,  variable, record, nan, %.2f, ln(m/s), "RMS value of Mean image"
Keyword: Apode_f,  float,  variable, record, NaN, %.5f, NA, "Temporal apodization edge (from first record)"
Keyword: APOD_MIN, double, variable, record, NaN, %.7f, NA, "Inner spatial apodization edge (from first record)"
Keyword: APOD_MAX, float,  variable, record, NaN, %.4f, NA, "Outer spatial apodization edge (from first record)"

Keyword: WCSNAME, string, constant, record, "k_x/k_y/omega", %s, NA, "WCS name"
Keyword: WCSAXES, int,    constant, record, 3, %d, NA, "Number of WCS axes"
Keyword: CTYPE1,  string, constant, record, "WAVE-NUM", %s, NA, "WCS axis type"
Keyword: CTYPE2,  string, constant, record, "WAVE-NUM", %s, NA, "WCS axis type"
Keyword: CTYPE3,  string, constant, record, "FREQ-ANG", %s, NA, "WCS axis type"
Keyword: CUNIT1,  string, constant, record, "Mm-1", %s, NA, "WCS axis units"
Keyword: CUNIT2,  string, constant, record, "Mm-1", %s, NA, "WCS axis units"
Keyword: CUNIT3,  string, constant, record, "s-1", %s, NA, "WCS axis units"
Keyword: CRVAL1,  float,  constant, record, 0.0, %.1f,   NA, "WCS reference point value"
Keyword: CRVAL2,  float,  constant, record, 0.0, %.1f,   NA, "WCS reference point value"
Keyword: CRVAL3,  float,  constant, record, 0.0, %.1f,   NA, "WCS reference point value"
Keyword: CRPIX3,  float,  constant, record, 1.0, %.1f, NA, "WCS reference pixel location"
Keyword: MapProj, string, constant, record, Postel, %s, NA, "Map projection"
Keyword: MapScale,float,  constant, record, 0.080, %.3f, deg/voxel, "Map scale"
Keyword: Map_PA,  float,  constant, record, 0.0, %.1f, deg, "Position angle of Carrington north wrt axis 2"
Keyword: Size,    float,  constant, record, 30.72, %.2f, deg, "Diameter of region (nominal)"
Keyword: Width,   float,  constant, record, 30.72, %.2f, deg, "Equatorial longitude extent of region (nominal)"
Keyword: Height,  float,  constant, record, 30.72, %.2f, deg, "Latitude extent of region (nominal)"
Keyword: Duration,float,  constant, record, 207360.0, %.1f,	s, "Length of tracking interval"
Keyword: Cadence, float,  constant, record, 45.0, %.1f, s/voxel, "Temporal image cadence"
Keyword: ZonalTrk,float,  constant, record, 0.000000, %.6f, urad/s, "Zonal tracking rate (rel to Carrington)"
Keyword: LonDrift,float,  constant, record, 0.000, %.3f, deg, "Longitude drift over tracking interval"
Keyword: MeridTrk,float,  constant, record, 0.0, %.1f, urad/s, "Meridional tracking rate"
Keyword: MeridVel,float,  constant, record, 0.0, %.1f, m/s, "Meridional tracking velocity at RSunRef"
Keyword: LatDrift,float,  constant, record, 0.000, %.3f, deg, "Latitude drift over tracking interval"
Keyword: RSunRef, float,  constant, record, 696.0, %.1f, Mm, "Reference value of solar radius"

# prime key slotting info (hidden)

Keyword: LatHG_base, float, constant, record, 90.0, %.1f, deg, "LatHG index base"
Keyword: LatHG_step, float, constant, record, -15.0, %.1f, deg, "LatHG index step"
Keyword: LonCM_base, float, constant, record, 0.0, %.1f, deg, "LonCM index base"
Keyword: LonCM_step, float, constant, record, 15.0, %.1f, deg, "LonCM index step"

#=====Segments=====

Data: logP,  variable, short, 3, 384, 384, 2304, log(m2/s2/pxl3), fits, "", 0.0, 0.5, "Mean power spectral density"
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