ASTROSAT CZTI

Data Quality Report

Orbit 43546

Creation date: 2024-06-27T22:53:01.369367
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/AS1A05_174T01_9000005880_43546cztM0_level2.fits modeM0/AS1A05_174T01_9000005880_43546cztM0_level2_quad_clean.evt
Size (bytes)962,861,76065,332,800
Size918.3 MB 62.3 MB
Events in quadrant A5,521,302667,154
Events in quadrant B3,488,266703,202
Events in quadrant C13,998,765129,141
Events in quadrant D12,198,74080,405

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205621
B0140291
C0453944
D0400651

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56193255.783947%
B56201572.793594%
C5619547897.490657%
D5619561199.857626%

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 6829 5619 83 83 1.22% 1.48%
B 6830 5621 47 47 0.69% 0.84%
C 6828 5618 5135 5135 75.21% 91.40%
D 6828 5618 4246 4246 62.19% 75.58%

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 0 228 1882223 14023.16 650 638 134.2
A 10 83 619231 4610.28 650 638 134.2
A 14 235 206659 1535.44 650 638 134.2
B 3 42 412821 3233.85 660 643 127.5
B 3 25 183381 1433.72 660 643 127.5
B 0 85 65579 509.47 660 643 127.5
C 15 174 5628235 172002.19 133 134 32.7
C 15 142 3635601 111104.67 133 134 32.7
C 15 126 3597197 109930.99 133 134 32.7
D 4 216 7858736 193997.56 103 97 40.5
D 4 212 1322136 32635.72 103 97 40.5
D 8 48 431759 10655.96 103 97 40.5

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