ASTROSAT CZTI

Data Quality Report

Orbit 39138

Creation date: 2024-06-27T22:00:52.968382
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/AS1A12_044T16_9000005442_39138cztM0_level2.fits modeM0/AS1A12_044T16_9000005442_39138cztM0_level2_quad_clean.evt
Size (bytes)355,092,48097,384,320
Size338.6 MB 92.9 MB
Events in quadrant A2,967,004655,373
Events in quadrant B2,586,005672,486
Events in quadrant C2,809,780636,984
Events in quadrant D4,339,573587,188

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121883
B0114122
C0117102
D0167702

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5681100.176025%
B568180.140820%
C5681100.176025%
D56811101.936279%

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 8935 5683 6 6 0.07% 0.11%
B 8935 5683 1 1 0.01% 0.02%
C 8935 5683 9 9 0.10% 0.16%
D 8935 5683 105 105 1.18% 1.85%

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 10 83 423225 3195.79 649 636 132.2
A 9 143 27138 200.42 649 636 132.2
A 13 254 7230 49.87 649 636 132.2
B 0 213 21894 169.46 649 631 125.5
B 12 111 16086 123.17 649 631 125.5
B 11 111 14829 113.15 649 631 125.5
C 15 214 236951 1587.04 637 641 148.9
C 15 208 50127 332.34 637 641 148.9
C 9 187 32486 213.87 637 641 148.9
D 12 235 1523297 10036.26 631 615 151.7
D 2 249 212369 1395.71 631 615 151.7
D 5 222 148403 974.1 631 615 151.7

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