HMI Ring Diagrams
Data Product Descriptions

hmi.rdVfitsc_fd15

Data Series Class: ring fits for structure
Creating Module: rdfitc
Input Data: hmi.rdVpspec_fd15

Data Processing Status

Originally only fits at tiles on the equator and the central meridian were performed (37 or 38 tiles, depending on B₀). Beginning with CR 2172 (25 Dec 2015), the fits have been performed for all tiles (281 or 284). Tiles off the equator/meridian cross have been either retrospectively fit or included in reprocessing for all previous rotations.

Data for CR 2096:240 through 2125:015 (1 May 2010 – 17 July 2012) were based on data mapped and tracked using a camera position angle that was subsequently established to about 0°.07 in error and corrected. Reprocessing of the tracked cubes using the corrected angle, and of the data products dependent on them, is complete.

Data for CR 2202:270, 2202:210–180, and 2203:270 were based on data tracked without background subtraction.

Data for CR 2098:360 through CR 2234:005 are based on data mapped and tracked using an ephemeris value for the Carrington longitude of disc centre that was in error by 0°.0819. Data reprocessed since 2020.09.26 are based on tracked data corrected for this error.

Versions of creating module used to produce records in the data series:

v 1.2 : CT 2126:360 – 2171:015 (on equator or central meridian), 2172:360 – 2186:015
v 1.3 : CT 2096:240 – 2125:015, 2126:360 – 2171:015 (off equator or central meridian), 2187:360 –

The following records have been subsequently reprocessed and exist in multiple versions in the DRMS database:

[2096–2125] : 32,781 records, originally processed 2010.11.19 – 2014.08.26, reprocessed 2021.01.11 – 11.05
[2126][360] : 38 records, originally processed 2012.08.18, reprocessed 2012.10.20
[2132][090] : 38 records, originally processed 2013.02.06, reprocessed same day
[2133][240] : 38 records, originally processed 2013.02.17, reprocessed 2013.03.05
[2196][030–015] : 568 records, originally processed 2017.11.16–17, reprocessed 2017.12.14–15
[2197][360–285] : 1692 records, originally processed 2017.11.18–24, reprocessed 2017.12.16–22
[2204][270–225] : 1124 records, originally processed 2018.06.13–16, reprocessed 2018.07.08–11

Records for CR 2096–2101 that were reprocessed in 2020 (between Sep 26 and Dec 8) were subsequently removed due to an error in the tracking code used at the time on which the data were based.

For current processing status, see the Ring-Diagram Status page.

See also the status report for the source spectra.

Data Notes

The fixed arguments to rdfitc that have been used in populating this series are:

out= hmi.rdVfitsc_fd15 (required)
guessfile= `show_info -pq ds= "yale_cb.guess_table[1]"`/freq.guess
fmax= 5500

During the period CR 2165–2201, when fits were performed for all tiles, the distribution of number of fits by mode order among the total of 251,612 was as follows:

n = 0 (min: 0; max: 341):

  0– 49	    65
 50– 99	   295
100–149	 24993
150–199	194948
200–249	 30861
250–299	   376
300–349	    74
≥350	     0

n = 1 (min: 34; max: 357):

  0– 49	     1
 50– 99	    26
100–149	   444
150–199	  9510
200–249	 89929
250–299	113040
300–349	 38642
≥350	    20

n = 2 (min: 99; max: 378):

  0– 49	     0
 50– 99	     1
100–149	   366
150–199	  1252
200–249	 13426
250–299	 72963
300–349	156846
≥350	  6758

n = 3 (min: 7; max: 346):

  0– 49	    13
 50– 99	   111
100–149	  1052
150–199	  5713
200–249	 48671
250–299	167606
300–349	 28446
≥350	     0

n = 4 (min: 0; max: 304):

  0– 49	   162
 50– 99	 38165
100–149	151043
150–199	 28196
200–249	 30017
250–299	  4013
≥300	    16

n = 5 (min: 0; max: 270):

  0– 49	 13882
 50– 99	  2747
100–149	 16993
150–199	148287
200–249	 68949
250–299	   754
≥300	     0

n = 6 (min: 0; max: 213):

  0– 49	 98019
 50– 99	 28242
100–149	 79448
150–199	 45855
≥200	     48

n = 7 (max: 144):

  0	 82900
  1	 75513
  2	 33472
  3	 16700
  4	  9637
  5–  9	 17902
 10– 14	  4812
 15– 19	  1849
 20– 49	  4503
 50– 99	  3808
100–149	   516
≥150	     0

n = 8 (max: 125):

  0	 90194
  1	 83981
  2	 34714
  3	 16943
  4	  9150
  5–  9	 13477
 10– 14	  2104
 15– 19	   471
 20– 49	   398
 50– 99	   153
100–149	    27
≥150	     0

n = 9 (max: 112):

  0	 94824
  1	 91443
  2	 32840
  3	 14354
  4	  7126
  5–  9	  9374
 10– 14	  1248
 15– 19	   237
 20– 49	   119
 50– 99	    41
≥100	     6

n = 10 (max: 96):

  0 	 56599
  1	148386
  2      31530
  3       8939
  4       3412
  5       1454
  6        655
  7        319
  8        169
  9         73
 10– 14     68
≥15	     8

Note that these counts include include reprocessed data for the eight time intervals 2196:030-2197:285, representing an extra 2260 cases.

Although setting of the keywords n_i_fits etc. for the mode fit counts and frequency extrema by order was implemented in version v 1.1 of the processing module, the relevant keywords were not added to the data series until processing with version v 1.2 began. Consequently the values of these keywords are unset (Postgres NULL) in all records processed with versions below v 1.2.

JSOC Series Definition

#=====Global Series Information=====
Seriesname:	hmi.rdVfitsc_fd15
Description:	"ring fits to power spectra of 15-deg HMI Doppler cubes on ring-diagram synoptic grid tracked 1/24 CR"
Author:		"Rick Bogart"
Archive:	1
Unitsize:	1
Retention:	2000
Tapegroup:	6
PrimeKeys:	CarrRot, CMLon, LonHG, LatHG, LonCM
Version:	2.1

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

Link: Source, hmi.rdVpspec_fd15, dynamic, "input data cube"

# ===== Keyword list ===== #
# Format:
#   Keyword: <name>, link, <linkname>, <target keyword name>, <comment>
# or
#   Keyword: <name>, <datatype>, {constant | variable}, {record | segment}, 
#            <default value>, <format>, <unit>, <comment>

Keyword: CarrRot, int, variable, record, -1,  %d, NA, "Carrington rotation at MidTime"
Keyword: CMLon,   float,  slot,     record, NaN, %03.0f, deg, "Longitude of central meridian at MidTime"
Keyword: LonHG,   float,  slot,     record, NaN, %05.1f, deg, "Carrington Longitude of tracked region center"
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: Module,  string, variable, record, unknown, %s, NA, "Creating module"
Keyword: Source,  string, variable, record, unknown, %s, NA, "Data source"
Keyword: Created, time,   variable, record, JD_0, -1, ISO, "Creation time"
Keyword: BLD_VERS,string, variable, record, unknown, %s, NA, "JSOC library build"
Keyword: HISTORY, string, variable, record, "", %s, NA, "Record modification history"
Keyword: n_0_fits,int,    variable, record, -1, %d, "", "Number of converged fits for radial order 0"
Keyword: n_0_fmin,float,  variable, record, NaN, %.3f, uHz, "Minimum frequency of converged fits for radial order 0"
Keyword: n_0_fmax,float,  variable, record, NaN, %.3f, uHz, "Maximum frequency of converged fits for radial order 0"
Keyword: n_1_fits,int,    variable, record, -1, %d, "", "Number of converged fits for radial order 1"
Keyword: n_1_fmin,float,  variable, record, NaN, %.3f, uHz, "Minimum frequency of converged fits for radial order 1"
Keyword: n_1_fmax,float,  variable, record, NaN, %.3f, uHz, "Maximum frequency of converged fits for radial order 1"
Keyword: n_2_fits,int,    variable, record, -1, %d, "", "Number of converged fits for radial order 2"
Keyword: n_2_fmin,float,  variable, record, NaN, %.3f, uHz, "Minimum frequency of converged fits for radial order 2"
Keyword: n_2_fmax,float,  variable, record, NaN, %.3f, uHz, "Maximum frequency of converged fits for radial order 2"
Keyword: n_3_fits,int,    variable, record, -1, %d, "", "Number of converged fits for radial order 3"
Keyword: n_3_fmin,float,  variable, record, NaN, %.3f, uHz, "Minimum frequency of converged fits for radial order 3"
Keyword: n_3_fmax,float,  variable, record, NaN, %.3f, uHz, "Maximum frequency of converged fits for radial order 3"
Keyword: n_4_fits,int,    variable, record, -1, %d, "", "Number of converged fits for radial order 4"
Keyword: n_4_fmin,float,  variable, record, NaN, %.3f, uHz, "Minimum frequency of converged fits for radial order 4"
Keyword: n_4_fmax,float,  variable, record, NaN, %.3f, uHz, "Maximum frequency of converged fits for radial order 4"
Keyword: n_5_fits,int,    variable, record, -1, %d, "", "Number of converged fits for radial order 5"
Keyword: n_5_fmin,float,  variable, record, NaN, %.3f, uHz, "Minimum frequency of converged fits for radial order 5"
Keyword: n_5_fmax,float,  variable, record, NaN, %.3f, uHz, "Maximum frequency of converged fits for radial order 5"
Keyword: n_6_fits,int,    variable, record, -1, %d, "", "Number of converged fits for radial order 6"
Keyword: n_6_fmin,float,  variable, record, NaN, %.3f, uHz, "Minimum frequency of converged fits for radial order 6"
Keyword: n_6_fmax,float,  variable, record, NaN, %.3f, uHz, "Maximum frequency of converged fits for radial order 6"
Keyword: n_7_fits,int,    variable, record, -1, %d, "", "Number of converged fits for radial order 7"
Keyword: n_7_fmin,float,  variable, record, NaN, %.3f, uHz, "Minimum frequency of converged fits for radial order 7"
Keyword: n_7_fmax,float,  variable, record, NaN, %.3f, uHz, "Maximum frequency of converged fits for radial order 7"
Keyword: n_8_fits,int,    variable, record, -1, %d, "", "Number of converged fits for radial order 8"
Keyword: n_8_fmin,float,  variable, record, NaN, %.3f, uHz, "Minimum frequency of converged fits for radial order 8"
Keyword: n_8_fmax,float,  variable, record, NaN, %.3f, uHz, "Maximum frequency of converged fits for radial order 8"
Keyword: n_9_fits,int,    variable, record, -1, %d, "", "Number of converged fits for radial order 9"
Keyword: n_9_fmin,float,  variable, record, NaN, %.3f, uHz, "Minimum frequency of converged fits for radial order 9"
Keyword: n_9_fmax,float,  variable, record, NaN, %.3f, uHz, "Maximum frequency of converged fits for radial order 9"
Keyword: n_10_fits,int,   variable, record, -1, %d, "", "Number of converged fits for radial order 10"
Keyword: n_10_fmin,float, variable, record, NaN, %.3f, uHz, "Minimum frequency of converged fits for radial order 10"
Keyword: n_10_fmax,float, variable, record, NaN, %.3f, uHz, "Maximum frequency of converged fits for radial order 10"
# the following are links to keywords in the source data cube
Keyword: MAI,     link, Source,  MAI,      "Magnetic Activity Index"
Keyword: MidTime, link, Source,  MidTime,  "Midpoint of tracking interval"
Keyword: T_START, link, Source,  T_START,  "Start of tracking interval"
Keyword: T_STOP,  link, Source,  T_STOP,   "End of tracking interval"
Keyword: LonSpan, link, Source,  LonSpan,  "Longitude span of tracking interval"
Keyword: Coverage,link, Source,  Coverage, "Duty cycle (valid images/total frames)"
Keyword: ZonalVel,link, Source,  ZonalVel, "Zonal tracking velocity at RSunRef and LatHG"
Keyword: Apode_f, link, Source,  Apode_f,  "Temporal apodization edge"
Keyword: APOD_MIN,link, Source,  APOD_MIN, "Inner spatial apodization edge"
Keyword: APOD_MAX,link, Source,  APOD_MAX, "Outer spatial apodization edge"
Keyword: MeanMU,  link, Source,  MeanMU,   "Mean center-to-limb distance"
Keyword: MeanLat, link, Source,  MeanLat,  "Mean latitude of mapped region"
# remainder are constant for series
Keyword: MapProj, string, constant, record, Postel,  %s, NA, "Original map projection"
Keyword: MapScale,float,  constant, record, 0.04, %.3f, deg/pxl, "Original map scale"
Keyword: Map_PA,  float,  constant, record, 0.0, %.1f, deg, "Original map position angle"
Keyword: Duration,float,  constant, record, 103680.0, %.1f, s, "Length of tracking interval"
Keyword: Cadence, float,  constant, record, 45.0, %.1f, s, "Temporal image cadence"
Keyword: Size,    float,  constant, record, 15.36, %.2f, deg, "Mean extent of region (nominal)"
Keyword: Width,   float,  constant, record, 15.36, %.2f, deg, "Longitude extent of region (nominal)"
Keyword: Height,  float,  constant, record, 15.36, %.2f, deg, "Latitude extent of region (nominal)"
Keyword: ZonalTrk,float,  constant, record, 0.000000, %.6f, urad/s, "Meridional tracking rate"
Keyword: LonDrift,float,  constant, record, 0.000, %.3f, deg, "Longitude drift over tracking interval"
Keyword: MeridTrk,float,  constant, record, 0.000000, %.6f, urad/s, "Meridional tracking rate"
Keyword: MeridVel,float,  constant, record, 0.000, %.3f, 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: CMLon_base, float, constant, record, 360, %.0f, deg, "CMLon index base"
Keyword: CMLon_step, float, constant, record, -15, %.0f, deg, "CMLon index step"
Keyword: LonHG_base, float, constant, record, 0.0, %.1f, deg, "LonHG index base"
Keyword: LonHG_step, float, constant, record, 2.5, %.1f, deg, "LonHG index step"
Keyword: LatHG_base, float, constant, record, 90.0, %.1f, deg, "LatHG index base"
Keyword: LatHG_step, float, constant, record, -7.5, %.1f, deg, "LatHG index step"
Keyword: LonCM_base, float, constant, record, 0.0, %.1f, deg, "LonCM index base"
Keyword: LonCM_step, float, constant, record, 2.5, %.1f, deg, "LonCM index step"

#=====Segments=====
#
# Format:
#
# Data: <name>, {constant | variable | vardim}, <type>,
#       <naxis>, <axis_0>, <axis_1>,...,<axis_{naxis-1}>, 
#       <unit>, <protocol>, <comment> 
Data: fit.out, vardim, char, 0, NA, generic, "fit parameters"
Data: Log, vardim, char, 0, NA, generic, "run log"

HMI Ring Diagrams

22 Apr 2022, 12:48-0700