ASTROSAT CZTI

Data Quality Report

Orbit 29683

Creation date: 2024-06-27T20:06:47.773070
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/AS1A10_093T01_9000004274_29683cztM0_level2.evt modeM0/AS1A10_093T01_9000004274_29683cztM0_level2_quad_clean.evt
Size (bytes)960,145,920174,876,480
Size915.7 MB 166.8 MB
Events in quadrant A5,814,2441,158,270
Events in quadrant B6,132,6591,175,945
Events in quadrant C6,174,1451,084,383
Events in quadrant D10,125,3561,027,611

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02500
B02500
C02500
D02500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254843
B0261543
C0262353
D0380083

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12298790.642381%
B12298960.780615%
C122982812.284924%
D1229810518.546105%

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 14048 12299 11 11 0.08% 0.09%
B 14048 12299 25 25 0.18% 0.20%
C 14048 12299 21 21 0.15% 0.17%
D 14048 12299 934 934 6.65% 7.59%

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 13 106490 354.71 1472 1440 296.2
A 13 254 24660 78.4 1472 1440 296.2
A 12 16 18275 56.84 1472 1440 296.2
B 0 229 199603 716.67 1462 1424 276.5
B 10 245 90207 321.06 1462 1424 276.5
B 12 111 34095 118.15 1462 1424 276.5
C 14 238 278601 854.99 1399 1410 324.2
C 3 233 172081 526.43 1399 1410 324.2
C 10 22 143434 438.07 1399 1410 324.2
D 7 80 3428685 10562.11 1376 1339 324.5
D 8 195 820051 2523.04 1376 1339 324.5
D 2 250 168877 516.3 1376 1339 324.5

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