ASTROSAT CZTI

Data Quality Report

Orbit 05537

Creation date: 2024-06-27T14:56:26.391499
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/AS1G06_084T01_9000000710_05537cztM0_level2.evt modeM0/AS1G06_084T01_9000000710_05537cztM0_level2_quad_clean.evt
Size (bytes)301,858,56048,297,600
Size287.9 MB 46.1 MB
Events in quadrant A2,590,124337,213
Events in quadrant B2,822,887321,428
Events in quadrant C2,594,464341,595
Events in quadrant D795,170115,023

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03951127565
B04145129160
C04062828809
D04278839163

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02013
B02215
C02014
D02114

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0397257
B0396297
C0392248
D0398282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5883240.407955%
B5888400.679348%
C5786190.328379%
D1733120.692441%

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 21430 8424 0 0 0.00% 0.00%
B 21431 8458 0 0 0.00% 0.00%
C 21622 8377 1 1 0.00% 0.01%
D 6445 2678 7 7 0.11% 0.26%

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 50 14474 99.0 668 651 139.6
A 12 194 6446 41.5 668 651 139.6
A 0 226 6429 41.38 668 651 139.6
B 15 204 163990 1237.22 673 654 132.0
B 11 51 17262 125.8 673 654 132.0
B 4 48 16563 120.51 673 654 132.0
C 1 16 72715 480.6 638 642 150.0
C 9 16 28610 186.5 638 642 150.0
C 13 61 5319 31.19 638 642 150.0
D 2 152 24993 500.51 193 187 49.6
D 2 14 18742 374.38 193 187 49.6
D 8 195 11454 227.33 193 187 49.6

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