ASTROSAT CZTI

Data Quality Report

Orbit 46016

Creation date: 2024-06-27T23:18:47.414238
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_033T01_9000006152_46016cztM0_level2.fits modeM0/AS1A13_033T01_9000006152_46016cztM0_level2_quad_clean.evt
Size (bytes)675,835,200118,704,960
Size644.5 MB 113.2 MB
Events in quadrant A6,304,823809,343
Events in quadrant B9,774,727712,473
Events in quadrant C4,100,300801,974
Events in quadrant D4,243,533736,778

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235000
B0344580
C0177023
D0179400

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7673640.834094%
B7673157120.474391%
C76711081.407900%
D7674801.042481%

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 7672 7672 4 4 0.05% 0.05%
B 7672 7672 1223 1223 15.94% 15.94%
C 7672 7670 63 63 0.82% 0.82%
D 7673 7673 79 79 1.03% 1.03%

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 2916117 16047.06 865 845 181.7
A 13 254 12622 64.82 865 845 181.7
A 0 247 11833 60.48 865 845 181.7
B 3 112 6497698 40000.06 808 783 162.4
B 4 171 39479 238.24 808 783 162.4
B 0 183 25179 150.2 808 783 162.4
C 3 233 643219 3236.43 842 848 198.5
C 14 254 151677 759.92 842 848 198.5
C 1 90 6259 27.26 842 848 198.5
D 1 52 564276 2665.51 846 821 211.4
D 2 249 106398 499.45 846 821 211.4
D 13 249 89298 418.55 846 821 211.4

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