ASTROSAT CZTI

Data Quality Report

Orbit 53005

Creation date: 2025-07-16T14:50:09.000357
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/AS1C09_011T07_9000006488_53005cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53005cztM0_level2_quad_clean.evt
Size (bytes)1,149,960,96048,602,880
Size1.1 GB 46.4 MB
Events in quadrant A13,642,68848,325
Events in quadrant B8,805,035464,595
Events in quadrant C8,622,021357,674
Events in quadrant D11,069,321209,198

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01151
B01160
C01160
D01162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044864559
B030400338
C029929409
D037255567

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5585517792.694718%
B5593165929.662078%
C5591197935.396172%
D5571358164.279304%

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 6780 5612 4759 4759 70.19% 84.80%
B 6784 5640 1534 1534 22.61% 27.20%
C 6785 5637 1600 1600 23.58% 28.38%
D 6784 5631 2814 2814 41.48% 49.97%

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 9 191 11932872 189800.2 246 239 62.9
A 15 190 529660 8420.96 246 239 62.9
A 0 8 63636 1008.39 246 239 62.9
B 10 254 6324529 54311.22 548 531 116.4
B 10 128 105397 900.6 548 531 116.4
B 4 81 64517 549.52 548 531 116.4
C 9 38 2995872 22274.47 484 479 134.5
C 15 224 1853115 13776.65 484 479 134.5
C 12 254 881879 6554.31 484 479 134.5
D 2 62 5456988 46110.18 405 385 118.3
D 8 176 3156130 26667.14 405 385 118.3
D 7 253 179037 1509.67 405 385 118.3

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