ASTROSAT CZTI

Data Quality Report

Orbit 37606

Creation date: 2024-06-27T21:42:07.024984
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/AS1A07_093T23_9000005340_37606cztM0_level2.evt modeM0/AS1A07_093T23_9000005340_37606cztM0_level2_quad_clean.evt
Size (bytes)290,571,84056,096,640
Size277.1 MB 53.5 MB
Events in quadrant A1,892,250374,711
Events in quadrant B2,139,538368,324
Events in quadrant C1,805,334367,891
Events in quadrant D2,715,809331,572

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077962
B085701
C075021
D0104471

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A361580.221300%
B36151534.232365%
C361580.221300%
D36152767.634855%

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 5557 3616 3 3 0.05% 0.08%
B 5557 3615 107 107 1.93% 2.96%
C 5557 3615 7 7 0.13% 0.19%
D 5557 3615 288 288 5.18% 7.97%

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 192758 2199.31 428 421 87.5
A 13 248 15198 168.97 428 421 87.5
A 13 6 12404 137.02 428 421 87.5
B 5 172 307612 3798.55 418 408 80.9
B 5 200 37010 452.58 418 408 80.9
B 0 230 30891 376.92 418 408 80.9
C 15 214 151898 1554.97 414 416 97.4
C 0 10 36032 365.6 414 416 97.4
C 13 61 2848 24.96 414 416 97.4
D 2 249 848707 8783.63 398 386 96.6
D 2 250 169508 1751.11 398 386 96.6
D 12 227 36811 377.15 398 386 96.6

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