ASTROSAT CZTI

Data Quality Report

Orbit 44056

Creation date: 2024-06-27T22:58:50.956576
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_029T01_9000005940_44056cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44056cztM0_level2_quad_clean.evt
Size (bytes)364,858,56088,885,440
Size348.0 MB 84.8 MB
Events in quadrant A3,344,354604,244
Events in quadrant B2,501,172629,849
Events in quadrant C2,778,992592,192
Events in quadrant D4,455,609482,868

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134422
B0112171
C0119791
D0168121

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5464791.445827%
B5464761.390922%
C5464821.500732%
D546477414.165447%

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 6284 5465 0 0 0.00% 0.00%
B 6284 5465 0 0 0.00% 0.00%
C 6284 5465 19 19 0.30% 0.35%
D 6284 5465 446 446 7.10% 8.16%

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 886840 6698.13 631 618 132.3
A 7 3 11069 78.99 631 618 132.3
A 3 137 7286 50.4 631 618 132.3
B 12 111 16325 124.43 632 612 126.3
B 11 111 14932 113.4 632 612 126.3
B 0 200 14919 113.29 632 612 126.3
C 14 254 255680 1707.44 627 631 149.4
C 3 233 53382 353.15 627 631 149.4
C 12 249 10869 68.54 627 631 149.4
D 1 52 2032429 14274.49 565 547 142.3
D 5 222 99787 697.19 565 547 142.3
D 2 249 57225 398.18 565 547 142.3

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