ASTROSAT CZTI

Data Quality Report

Orbit 44923

Creation date: 2024-06-27T23:08:01.974994
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_017T02_9000006032_44923cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44923cztM0_level2_quad_clean.evt
Size (bytes)554,852,160115,191,360
Size529.1 MB 109.9 MB
Events in quadrant A5,760,185788,402
Events in quadrant B3,879,179825,896
Events in quadrant C3,244,691802,043
Events in quadrant D7,162,690628,879

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0211362
B0156852
C0135682
D0257332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63522313.636650%
B63521352.125315%
C6352440.692695%
D6352107916.986776%

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 7627 6353 59 59 0.77% 0.93%
B 7627 6353 30 30 0.39% 0.47%
C 7627 6353 14 14 0.18% 0.22%
D 7627 6353 728 728 9.55% 11.46%

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 2426042 14787.84 796 781 164.0
A 13 248 167789 1018.32 796 781 164.0
A 0 247 61097 367.77 796 781 164.0
B 0 183 200882 1296.14 796 775 154.4
B 4 171 148780 958.66 796 775 154.4
B 5 255 75365 483.14 796 775 154.4
C 14 254 54140 289.92 793 801 184.0
C 1 3 47488 253.76 793 801 184.0
C 12 2 36658 194.89 793 801 184.0
D 1 52 2472776 13403.3 737 714 184.4
D 2 249 749919 4062.12 737 714 184.4
D 13 249 398026 2154.19 737 714 184.4

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