ASTROSAT CZTI

Data Quality Report

Orbit 25407

Creation date: 2024-06-27T19:17:18.331553
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/AS1A09_057T04_9000003712_25407cztM0_level2.evt modeM0/AS1A09_057T04_9000003712_25407cztM0_level2_quad_clean.evt
Size (bytes)263,350,08031,167,360
Size251.2 MB 29.7 MB
Events in quadrant A1,603,214182,350
Events in quadrant B1,705,711179,676
Events in quadrant C1,578,036171,535
Events in quadrant D2,856,782168,888

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068470
B070880
C068380
D0109320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A339220.058962%
B3392180.530660%
C3393130.383142%
D3393882.593575%

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 3392 3392 0 0 0.00% 0.00%
B 3392 3392 13 13 0.38% 0.38%
C 3393 3393 0 0 0.00% 0.00%
D 3393 3393 80 80 2.36% 2.36%

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 6 16 32079 383.74 406 397 82.6
A 13 254 5567 62.62 406 397 82.6
A 3 137 3723 40.28 406 397 82.6
B 3 112 96753 1246.07 399 390 77.3
B 0 229 31398 400.96 399 390 77.3
B 12 111 9162 113.43 399 390 77.3
C 14 238 62041 679.09 384 386 90.8
C 7 247 10251 108.66 384 386 90.8
C 3 233 5943 61.21 384 386 90.8
D 2 72 349694 3701.06 388 376 94.4
D 1 52 334546 3540.57 388 376 94.4
D 7 238 315666 3340.53 388 376 94.4

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