ASTROSAT CZTI

Data Quality Report

Orbit 44356

Creation date: 2024-06-27T23:02:35.323888
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_008T06_9000005994_44356cztM0_level2.fits modeM0/AS1A13_008T06_9000005994_44356cztM0_level2_quad_clean.evt
Size (bytes)509,376,960105,174,720
Size485.8 MB 100.3 MB
Events in quadrant A5,505,614687,835
Events in quadrant B3,686,888748,321
Events in quadrant C3,071,199720,746
Events in quadrant D6,102,179587,661

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216131
B0151541
C0134361
D0223791

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63074827.642302%
B63062173.441167%
C6307801.268432%
D630791214.460124%

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 7377 6307 244 244 3.31% 3.87%
B 7376 6306 86 86 1.17% 1.36%
C 7377 6307 9 9 0.12% 0.14%
D 7377 6307 779 779 10.56% 12.35%

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 1535348 10023.5 739 724 153.1
A 13 248 761715 4970.46 739 724 153.1
A 15 223 273232 1779.9 739 724 153.1
B 5 172 241174 1614.91 749 726 148.9
B 5 255 144183 963.49 749 726 148.9
B 0 219 81831 544.72 749 726 148.9
C 14 254 124180 714.48 734 739 172.8
C 2 14 24150 135.5 734 739 172.8
C 14 96 22346 125.06 734 739 172.8
D 5 235 1281682 7341.15 698 679 174.5
D 13 249 1067243 6112.25 698 679 174.5
D 1 52 201877 1153.02 698 679 174.5

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