ASTROSAT CZTI

Data Quality Report

Orbit 48412

Creation date: 2024-09-10T05:54:34.929583
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_029T01_9000006426_48412cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48412cztM0_level2_quad_clean.evt
Size (bytes)535,904,640117,544,320
Size511.1 MB 112.1 MB
Events in quadrant A8,117,286755,688
Events in quadrant B3,771,334799,822
Events in quadrant C3,333,074771,657
Events in quadrant D4,030,314706,835

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0295441
B0165001
C0156181
D0175682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75494505.961054%
B75491261.669095%
C7549180.238442%
D7549600.794807%

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 7819 7550 123 123 1.57% 1.63%
B 7819 7550 23 23 0.29% 0.30%
C 7819 7550 5 5 0.06% 0.07%
D 7819 7550 48 48 0.61% 0.64%

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 4447941 26208.79 810 790 169.7
A 13 248 361731 2127.17 810 790 169.7
A 15 235 139334 816.49 810 790 169.7
B 12 16 258400 1579.78 818 791 163.1
B 0 183 96240 585.34 818 791 163.1
B 8 234 56492 341.58 818 791 163.1
C 15 208 96809 502.86 806 812 190.9
C 12 2 70710 366.15 806 812 190.9
C 14 254 11009 53.41 806 812 190.9
D 13 168 325430 1607.13 803 778 202.0
D 7 55 172335 849.26 803 778 202.0
D 2 249 142935 703.72 803 778 202.0

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