ASTROSAT CZTI

Data Quality Report

Orbit 47199

Creation date: 2024-06-27T23:32:46.002083
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_019T01_9000006302_47199cztM0_level2.fits modeM0/AS1A13_019T01_9000006302_47199cztM0_level2_quad_clean.evt
Size (bytes)458,343,360110,240,640
Size437.1 MB 105.1 MB
Events in quadrant A6,473,056732,817
Events in quadrant B3,766,733769,116
Events in quadrant C3,021,833732,993
Events in quadrant D3,218,423665,753

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237101
B0150241
C0131742
D0138621

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62682243.573708%
B62691852.951029%
C6268380.606254%
D6268811.292278%

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 7493 6268 40 40 0.53% 0.64%
B 7494 6269 55 55 0.73% 0.88%
C 7493 6269 7 7 0.09% 0.11%
D 7493 6269 55 55 0.73% 0.88%

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 3484627 22377.33 750 735 155.7
A 14 235 85235 542.75 750 735 155.7
A 13 254 11705 70.46 750 735 155.7
B 0 190 215534 1456.43 758 738 147.5
B 8 234 175867 1187.47 758 738 147.5
B 15 201 97891 658.75 758 738 147.5
C 14 254 94441 537.01 741 747 174.5
C 8 111 15943 87.1 741 747 174.5
C 10 20 8557 44.76 741 747 174.5
D 2 249 91794 495.68 734 713 183.8
D 13 70 86499 466.86 734 713 183.8
D 5 171 54926 295.04 734 713 183.8

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