ASTROSAT CZTI

Data Quality Report

Orbit 44130

Creation date: 2024-06-27T22:59:33.471522
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_012T02_9000005950_44130cztM0_level2.fits modeM0/AS1A13_012T02_9000005950_44130cztM0_level2_quad_clean.evt
Size (bytes)468,025,920104,915,520
Size446.3 MB 100.1 MB
Events in quadrant A4,216,089713,028
Events in quadrant B3,440,380726,228
Events in quadrant C3,083,506702,669
Events in quadrant D6,069,669572,278

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1139707716339752139706696204334
B1-1-1
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01351
B01340
C01342
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016840104
B01514772
C01425171
D022770164

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6631570.859599%
B66331241.869441%
C6632200.301568%
D662377511.701646%

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 6638 6636 21 21 0.32% 0.32%
B 6640 6638 67 67 1.01% 1.01%
C 6634 6633 13 13 0.20% 0.20%
D 6631 6631 706 706 10.65% 10.65%

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 1104402 7004.96 747 732 157.6
A 14 31 111171 700.95 747 732 157.6
A 14 238 44647 278.73 747 732 157.6
B 5 172 292758 1977.25 743 721 147.7
B 4 171 84867 569.72 743 721 147.7
B 5 235 44403 295.75 743 721 147.7
C 14 254 103746 591.37 732 737 174.2
C 12 249 73711 418.94 732 737 174.2
C 1 241 21077 116.77 732 737 174.2
D 5 235 1772122 9979.75 695 676 177.5
D 1 52 529187 2977.46 695 676 177.5
D 2 249 419791 2361.16 695 676 177.5

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