ASTROSAT CZTI

Data Quality Report

Orbit 33628

Creation date: 2024-06-27T20:50:50.473395
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/AS1T04_076T01_9000004810_33628cztM0_level2.evt modeM0/AS1T04_076T01_9000004810_33628cztM0_level2_quad_clean.evt
Size (bytes)219,867,84032,518,080
Size209.7 MB 31.0 MB
Events in quadrant A1,147,592207,071
Events in quadrant B1,962,061211,024
Events in quadrant C1,474,461205,798
Events in quadrant D1,915,752193,494

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A047972
B073101
C057991
D072791

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A231470.302506%
B231430213.050994%
C2314753.241141%
D23141014.364736%

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 4377 2315 2 2 0.05% 0.09%
B 4377 2315 254 254 5.80% 10.97%
C 4377 2315 62 62 1.42% 2.68%
D 4377 2315 81 81 1.85% 3.50%

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 15 169 11751 192.37 289 284 59.6
A 15 237 8178 132.43 289 284 59.6
A 13 254 3884 60.39 289 284 59.6
B 5 172 816448 15204.1 270 264 53.7
B 5 255 32268 596.18 270 264 53.7
B 0 213 12435 226.72 270 264 53.7
C 0 10 208178 3112.37 281 284 66.8
C 15 214 105990 1582.52 281 284 66.8
C 3 233 47234 702.89 281 284 66.8
D 8 195 327569 4345.54 277 271 75.3
D 2 250 166838 2211.51 277 271 75.3
D 12 6 72197 954.96 277 271 75.3

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