ASTROSAT CZTI

Data Quality Report

Orbit 06743

Creation date: 2024-06-27T15:11:04.969272
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/AS1G06_068T01_9000000930_06743cztM0_level2.evt modeM0/AS1G06_068T01_9000000930_06743cztM0_level2_quad_clean.evt
Size (bytes)511,165,44081,492,480
Size487.5 MB 77.7 MB
Events in quadrant A3,440,336517,045
Events in quadrant B3,292,179521,888
Events in quadrant C3,076,802510,307
Events in quadrant D5,238,522473,402

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144473
B0140942
C0133962
D0199382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63761141.787955%
B6376711.113551%
C6376400.627353%
D637770911.118081%

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 7626 6377 13 13 0.17% 0.20%
B 7626 6377 0 0 0.00% 0.00%
C 7626 6377 0 0 0.00% 0.00%
D 7627 6378 549 549 7.20% 8.61%

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 15 234 286144 1776.38 796 779 160.6
A 13 251 58847 361.47 796 779 160.6
A 8 15 18877 112.66 796 779 160.6
B 0 214 47771 306.7 804 785 153.2
B 4 48 36555 233.49 804 785 153.2
B 4 81 22495 141.71 804 785 153.2
C 9 247 16704 88.32 777 784 180.3
C 12 4 14781 77.65 777 784 180.3
C 9 16 10248 52.5 777 784 180.3
D 2 33 1779938 9875.02 742 722 180.2
D 8 195 284881 1577.14 742 722 180.2
D 2 152 160289 885.63 742 722 180.2

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