ASTROSAT CZTI

Data Quality Report

Orbit 54765

Creation date: 2025-11-12T01:49:10.125158
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/AS1A14_103T01_9000006524_54765cztM0_level2.fits modeM0/AS1A14_103T01_9000006524_54765cztM0_level2_quad_clean.evt
Size (bytes)664,421,76088,142,400
Size633.6 MB 84.1 MB
Events in quadrant A3,121,936649,429
Events in quadrant B8,711,128516,773
Events in quadrant C7,274,209473,380
Events in quadrant D4,970,438564,428

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141272
B0304722
C0264373
D0196122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66641041.560624%
B6664204730.717287%
C6663181427.224974%
D66633675.508029%

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 7654 6665 11 11 0.14% 0.17%
B 7654 6664 1649 1649 21.54% 24.74%
C 7653 6663 1158 1158 15.13% 17.38%
D 7653 6664 297 297 3.88% 4.46%

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 4 206 125707 688.89 740 720 181.4
A 4 3 37456 202.48 740 720 181.4
A 4 249 33478 180.55 740 720 181.4
B 2 249 4944206 37876.52 606 584 130.5
B 1 207 700671 5363.85 606 584 130.5
B 10 28 377804 2890.14 606 584 130.5
C 4 5 4625239 29450.28 574 569 157.0
C 13 3 198967 1263.42 574 569 157.0
C 6 223 68906 435.18 574 569 157.0
D 3 12 1312786 6503.31 702 670 201.8
D 11 129 371973 1840.31 702 670 201.8
D 8 160 217708 1075.72 702 670 201.8

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