ASTROSAT CZTI

Data Quality Report

Orbit 41300

Creation date: 2024-06-27T22:27:12.406548
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/AS1T05_106T01_9000005642_41300cztM0_level2.fits modeM0/AS1T05_106T01_9000005642_41300cztM0_level2_quad_clean.evt
Size (bytes)514,543,68082,491,840
Size490.7 MB 78.7 MB
Events in quadrant A3,072,179617,405
Events in quadrant B2,616,075654,617
Events in quadrant C3,188,988584,405
Events in quadrant D9,769,401281,373

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121493
B0111022
C0123882
D0325552

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5142731.419681%
B5142140.272268%
C51422785.406457%
D5142287955.989887%

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 7205 5143 58 58 0.80% 1.13%
B 7205 5143 6 6 0.08% 0.12%
C 7205 5143 263 263 3.65% 5.11%
D 7205 5143 2831 2831 39.29% 55.05%

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 499095 4194.21 584 574 118.9
A 13 248 161956 1357.76 584 574 118.9
A 6 10 87379 730.32 584 574 118.9
B 0 186 108053 964.06 591 575 111.5
B 5 255 65292 580.5 591 575 111.5
B 7 202 59778 531.04 591 575 111.5
C 0 10 765652 5868.24 565 568 130.4
C 15 214 214301 1639.34 565 568 130.4
C 13 61 3699 24.01 565 568 130.4
D 1 47 6467168 62452.71 425 412 103.5
D 2 249 626791 6049.26 425 412 103.5
D 5 222 358105 3454.42 425 412 103.5

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