ASTROSAT CZTI

Data Quality Report

Orbit 40130

Creation date: 2024-06-27T22:12:41.170219
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/AS1A12_004T01_9000005520_40130cztM0_level2.fits modeM0/AS1A12_004T01_9000005520_40130cztM0_level2_quad_clean.evt
Size (bytes)477,048,96085,089,600
Size454.9 MB 81.1 MB
Events in quadrant A2,777,423599,515
Events in quadrant B2,603,207618,784
Events in quadrant C8,369,235447,374
Events in quadrant D3,484,991529,057

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116213
B0117562
C0286302
D0143152

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5455120.219982%
B5455751.374885%
C5455172831.677360%
D54552234.087993%

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 7399 5456 5 5 0.07% 0.09%
B 7399 5456 67 67 0.91% 1.23%
C 7399 5455 1825 1825 24.67% 33.46%
D 7399 5456 224 224 3.03% 4.11%

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 462527 3864.84 581 570 119.5
A 2 79 50888 420.97 581 570 119.5
A 6 10 10075 79.52 581 570 119.5
B 5 255 278002 2475.95 578 562 112.1
B 4 171 21768 189.25 578 562 112.1
B 0 218 16541 142.6 578 562 112.1
C 9 187 6104632 52117.31 501 506 117.1
C 15 214 206591 1759.56 501 506 117.1
C 14 254 79440 673.94 501 506 117.1
D 2 249 836975 6065.03 558 541 137.9
D 13 249 112355 810.77 558 541 137.9
D 2 250 88710 639.32 558 541 137.9

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