ASTROSAT CZTI

Data Quality Report

Orbit 07759

Creation date: 2024-06-27T15:23:37.003131
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G06_064T01_9000001066_07759cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07759cztM0_level2_quad_clean.evt
Size (bytes)838,575,360137,401,920
Size799.7 MB 131.0 MB
Events in quadrant A4,949,665876,545
Events in quadrant B5,536,071886,630
Events in quadrant C4,941,894879,139
Events in quadrant D9,261,438795,154

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02140
B02140
C02140
D02140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214643
B0229362
C0214882
D0344702

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10444940.900038%
B104442442.336270%
C10444580.555343%
D10444174716.727308%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 12939 10446 0 0 0.00% 0.00%
B 12939 10446 88 88 0.68% 0.84%
C 12939 10445 0 0 0.00% 0.00%
D 12939 10445 1583 1583 12.23% 15.16%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 226 12471 43.13 1284 1256 260.0
A 12 194 11553 39.6 1284 1256 260.0
A 3 1 5635 16.84 1284 1256 260.0
B 4 173 267430 1112.38 1280 1253 239.3
B 4 81 164620 682.73 1280 1253 239.3
B 0 214 42802 173.64 1280 1253 239.3
C 13 61 9800 29.56 1263 1271 288.6
C 8 222 5772 15.6 1263 1271 288.6
C 12 4 4354 10.68 1263 1271 288.6
D 12 221 4444463 15486.19 1180 1146 286.9
D 2 152 145468 503.0 1180 1146 286.9
D 13 104 85878 295.31 1180 1146 286.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter