ASTROSAT CZTI

Data Quality Report

Orbit 44933

Creation date: 2024-06-27T23:08:08.026528
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_017T02_9000006032_44933cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44933cztM0_level2_quad_clean.evt
Size (bytes)514,584,00091,632,960
Size490.7 MB 87.4 MB
Events in quadrant A4,641,258637,233
Events in quadrant B3,693,183640,143
Events in quadrant C2,704,164638,538
Events in quadrant D7,547,392442,493

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183561
B0148691
C0123641
D0264961

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59561021.712559%
B59572614.381400%
C5957470.788988%
D5957150725.297969%

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 6856 5957 2 2 0.03% 0.03%
B 6857 5958 147 147 2.14% 2.47%
C 6857 5958 17 17 0.25% 0.29%
D 6857 5958 1351 1351 19.70% 22.68%

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 2016124 14404.46 667 653 139.9
A 7 3 24202 168.3 667 653 139.9
A 0 247 14932 102.05 667 653 139.9
B 4 171 666597 5070.67 654 635 131.3
B 5 172 121045 916.81 654 635 131.3
B 0 183 107065 810.36 654 635 131.3
C 1 3 83478 531.87 656 660 155.7
C 14 254 58079 368.76 656 660 155.7
C 3 233 6865 39.85 656 660 155.7
D 13 187 2960441 20994.87 549 530 141.0
D 13 249 640782 4541.36 549 530 141.0
D 1 52 607334 4304.11 549 530 141.0

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