ASTROSAT CZTI

Data Quality Report

Orbit 44082

Creation date: 2024-06-27T22:59:09.865794
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/AS1A13_029T01_9000005940_44082cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44082cztM0_level2_quad_clean.evt
Size (bytes)462,061,440117,129,600
Size440.7 MB 111.7 MB
Events in quadrant A4,617,144794,177
Events in quadrant B3,126,556841,765
Events in quadrant C3,083,630779,699
Events in quadrant D5,763,657670,792

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0184022
B0136582
C0137242
D0215632

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66031422.150538%
B6603610.923823%
C6602250.378673%
D66025117.740079%

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 7808 6604 46 46 0.59% 0.70%
B 7808 6604 1 1 0.01% 0.02%
C 7807 6603 8 8 0.10% 0.12%
D 7807 6603 433 433 5.55% 6.56%

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 1243565 7820.67 779 765 158.9
A 12 227 211185 1324.13 779 765 158.9
A 7 3 108435 677.54 779 765 158.9
B 12 111 19623 122.56 790 768 153.8
B 11 111 18136 112.89 790 768 153.8
B 14 111 17926 111.53 790 768 153.8
C 14 254 64429 352.5 766 772 180.6
C 11 16 10405 53.34 766 772 180.6
C 8 222 7498 37.24 766 772 180.6
D 13 249 1184852 6553.7 731 712 180.7
D 5 235 605054 3344.77 731 712 180.7
D 1 52 594767 3287.83 731 712 180.7

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