ASTROSAT CZTI

Data Quality Report

Orbit 29997

Creation date: 2024-06-27T20:09:41.952704
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/AS1A10_071T01_9000004310_29997cztM0_level2.evt modeM0/AS1A10_071T01_9000004310_29997cztM0_level2_quad_clean.evt
Size (bytes)656,867,520108,676,800
Size626.4 MB 103.6 MB
Events in quadrant A4,103,901705,927
Events in quadrant B6,198,508696,324
Events in quadrant C4,217,689669,800
Events in quadrant D4,834,623666,378

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172282
B0245482
C0175032
D0192672

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79383454.346183%
B79385697.168052%
C79384765.996473%
D79384315.429579%

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 8323 7940 0 0 0.00% 0.00%
B 8323 7940 3 3 0.04% 0.04%
C 8323 7940 5 5 0.06% 0.06%
D 8323 7940 128 128 1.54% 1.61%

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 8 192 18600 81.26 1056 1031 216.2
A 13 254 14666 63.06 1056 1031 216.2
A 3 1 13769 58.91 1056 1031 216.2
B 6 159 2132683 10546.43 1022 993 202.1
B 12 111 25999 123.71 1022 993 202.1
B 11 111 23987 113.76 1022 993 202.1
C 14 238 157588 654.64 1002 1004 239.2
C 3 233 135330 561.58 1002 1004 239.2
C 2 114 19084 75.59 1002 1004 239.2
D 7 80 750401 2804.52 1014 995 267.2
D 8 195 155049 576.52 1014 995 267.2
D 2 234 36962 134.6 1014 995 267.2

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