ASTROSAT CZTI

Data Quality Report

Orbit 03547

Creation date: 2024-06-27T14:30:48.369365
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/AS1G05_045T01_9000000468_03547cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03547cztM0_level2_quad_clean.evt
Size (bytes)440,634,24071,392,320
Size420.2 MB 68.1 MB
Events in quadrant A2,833,794441,043
Events in quadrant B3,223,545440,822
Events in quadrant C4,208,366430,618
Events in quadrant D2,668,854427,635

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125642
B0137131
C0168291
D0124211

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6038270.447168%
B6038360.596224%
C60381973.262670%
D6038210.347797%

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 7318 6038 3 3 0.04% 0.05%
B 7318 6039 8 8 0.11% 0.13%
C 7318 6038 148 148 2.02% 2.45%
D 7318 6038 1 1 0.01% 0.02%

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 0 118 68784 472.89 701 685 144.0
A 0 50 32478 220.78 701 685 144.0
A 3 1 13794 91.03 701 685 144.0
B 15 204 178454 1325.32 711 695 134.1
B 14 167 149293 1107.9 711 695 134.1
B 15 85 26450 192.02 711 695 134.1
C 1 192 919120 5739.48 686 691 160.0
C 4 248 545839 3406.76 686 691 160.0
C 14 48 19812 119.49 686 691 160.0
D 13 239 43198 257.21 686 665 165.4
D 13 137 11163 63.49 686 665 165.4
D 5 233 10498 59.46 686 665 165.4

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