ASTROSAT CZTI

Data Quality Report

Orbit 34033

Creation date: 2024-06-27T20:55:39.796025
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/AS1A06_003T04_9000004866_34033cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34033cztM0_level2_quad_clean.evt
Size (bytes)522,984,96088,384,320
Size498.8 MB 84.3 MB
Events in quadrant A3,130,635602,756
Events in quadrant B3,673,973597,731
Events in quadrant C4,805,828583,040
Events in quadrant D3,894,188546,417

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121963
B0140752
C0177102
D0147672

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49401733.502024%
B49403186.437247%
C49402645.344130%
D49403296.659919%

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 7063 4941 161 161 2.28% 3.26%
B 7062 4940 257 257 3.64% 5.20%
C 7063 4941 258 258 3.65% 5.22%
D 7062 4940 322 322 4.56% 6.52%

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 678522 5447.27 625 615 124.4
A 10 83 17701 137.29 625 615 124.4
A 13 6 11267 85.59 625 615 124.4
B 5 172 902513 7823.67 610 597 115.3
B 0 189 91381 787.51 610 597 115.3
B 15 222 82095 706.95 610 597 115.3
C 3 233 1415495 10461.23 590 596 135.3
C 0 10 634829 4689.28 590 596 135.3
C 15 214 231304 1705.77 590 596 135.3
D 7 204 560166 3879.82 589 574 144.2
D 8 195 367204 2541.95 589 574 144.2
D 12 6 204784 1415.85 589 574 144.2

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