ASTROSAT CZTI

Data Quality Report

Orbit 43986

Creation date: 2024-06-27T22:57:59.320043
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_065T06_9000005924_43986cztM0_level2.fits modeM0/AS1A13_065T06_9000005924_43986cztM0_level2_quad_clean.evt
Size (bytes)695,151,360103,006,080
Size662.9 MB 98.2 MB
Events in quadrant A9,843,562440,928
Events in quadrant B5,103,997746,797
Events in quadrant C3,861,680764,688
Events in quadrant D6,350,274653,538

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0346850
B0201920
C0167620
D0238780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7367344046.694720%
B73686989.473398%
C73681782.415852%
D73677229.800462%

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 7367 7367 1513 1513 20.54% 20.54%
B 7368 7368 490 490 6.65% 6.65%
C 7368 7368 132 132 1.79% 1.79%
D 7367 7367 562 562 7.63% 7.63%

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 15 223 5849262 49045.68 557 544 119.3
A 15 222 895630 7505.94 557 544 119.3
A 10 83 714638 5988.19 557 544 119.3
B 5 172 1710721 10695.47 800 775 159.9
B 4 173 47915 294.85 800 775 159.9
B 0 200 32298 197.17 800 775 159.9
C 15 158 213457 1096.71 814 817 193.9
C 8 222 146803 752.93 814 817 193.9
C 15 157 99831 510.67 814 817 193.9
D 12 17 1136801 5668.8 785 758 200.4
D 1 52 871080 4342.86 785 758 200.4
D 7 80 509996 2541.07 785 758 200.4

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