ASTROSAT CZTI

Data Quality Report

Orbit 00213

Creation date: 2024-06-27T13:57:59.961863
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/AS1P01_118T01_9000000020_00213cztM0_level2.evt modeM0/AS1P01_118T01_9000000020_00213cztM0_level2_quad_clean.evt
Size (bytes)1,064,882,88071,786,880
Size1015.6 MB 68.5 MB
Events in quadrant A12,318,407428,421
Events in quadrant B7,186,124457,326
Events in quadrant C6,138,362461,295
Events in quadrant D6,238,011435,010

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0406103
B0253722
C0222612
D0226082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A564162511.079596%
B5593340.607903%
C564120.035455%
D5518100.181225%

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 7346 5642 3282 3282 44.68% 58.17%
B 7346 5595 224 224 3.05% 4.00%
C 7346 5642 52 52 0.71% 0.92%
D 7346 5521 90 90 1.23% 1.63%

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 15 127 5573600 14503.19 1736 1727 384.2
A 13 17 10446 22.69 1736 1727 384.2
A 11 242 9414 20.01 1736 1727 384.2
B 14 50 453076 1118.79 1716 1731 403.4
B 5 46 61553 148.29 1716 1731 403.4
B 0 183 33024 77.57 1716 1731 403.4
C 1 192 9815 18.74 1558 1610 437.9
C 1 1 5943 9.89 1558 1610 437.9
C 7 111 4063 5.6 1558 1610 437.9
D 1 4 219631 469.3 1516 1560 464.7
D 1 5 60837 127.57 1516 1560 464.7
D 13 117 47495 98.85 1516 1560 464.7

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