ASTROSAT CZTI

Data Quality Report

Orbit 10538

Creation date: 2024-06-27T16:00:41.941159
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/AS1G07_079T01_9000001528_10538cztM0_level2.evt modeM0/AS1G07_079T01_9000001528_10538cztM0_level2_quad_clean.evt
Size (bytes)525,168,00086,826,240
Size500.8 MB 82.8 MB
Events in quadrant A2,903,485546,065
Events in quadrant B4,285,011564,900
Events in quadrant C2,858,739561,738
Events in quadrant D5,425,806512,534

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131413
B0170612
C0130602
D0207142

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6370230.361068%
B63703906.122449%
C6370130.204082%
D63702203.453689%

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 7585 6372 3 3 0.04% 0.05%
B 7585 6372 242 242 3.19% 3.80%
C 7585 6372 1 1 0.01% 0.02%
D 7585 6372 163 163 2.15% 2.56%

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 15 239 22606 145.43 742 726 150.5
A 1 162 9896 60.95 742 726 150.5
A 0 226 6588 38.96 742 726 150.5
B 4 239 1205601 8646.22 742 724 139.4
B 0 214 88385 629.06 742 724 139.4
B 11 51 39278 276.66 742 724 139.4
C 14 234 9354 50.5 731 737 170.6
C 13 61 5516 28.01 731 737 170.6
C 3 202 1806 6.26 731 737 170.6
D 1 20 1338568 7963.83 704 683 168.0
D 1 52 784933 4668.29 704 683 168.0
D 8 195 269624 1600.88 704 683 168.0

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