ASTROSAT CZTI

Data Quality Report

Orbit 19412

Creation date: 2024-06-27T18:02:42.878251
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/AS1T03_028T01_9000002880_19412cztM0_level2.evt modeM0/AS1T03_028T01_9000002880_19412cztM0_level2_quad_clean.evt
Size (bytes)521,398,08065,407,680
Size497.2 MB 62.4 MB
Events in quadrant A3,242,736400,304
Events in quadrant B3,448,042396,692
Events in quadrant C3,295,000376,008
Events in quadrant D5,379,269369,226

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132621
B0139221
C0134111
D0202331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62821181.878383%
B62821562.483286%
C62821342.133079%
D62823765.985355%

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 7417 6282 0 0 0.00% 0.00%
B 7417 6282 17 17 0.23% 0.27%
C 7417 6282 0 0 0.00% 0.00%
D 7417 6282 286 286 3.86% 4.55%

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 13 254 9558 51.77 840 824 168.7
A 0 226 7379 38.85 840 824 168.7
A 3 137 6285 32.37 840 824 168.7
B 7 220 110872 699.18 827 807 157.4
B 0 190 29393 181.59 827 807 157.4
B 0 197 18261 110.88 827 807 157.4
C 14 238 125162 683.51 789 794 182.0
C 3 233 49827 269.48 789 794 182.0
C 7 220 27517 146.87 789 794 182.0
D 7 238 2018292 10511.97 799 776 191.9
D 1 52 299078 1554.26 799 776 191.9
D 2 234 27599 139.76 799 776 191.9

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