ASTROSAT CZTI

Data Quality Report

Orbit 07633

Creation date: 2024-06-27T15:22:02.457891
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/AS1G06_016T01_9000001052_07633cztM0_level2.evt modeM0/AS1G06_016T01_9000001052_07633cztM0_level2_quad_clean.evt
Size (bytes)747,216,00099,766,080
Size712.6 MB 95.1 MB
Events in quadrant A4,403,008608,091
Events in quadrant B4,360,827617,237
Events in quadrant C8,475,416595,368
Events in quadrant D4,793,741588,434

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190587
B0188713
C0313309
D0204848

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01800
B01800
C01800
D01800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A88111311.486778%
B88121992.258284%
C881092410.488082%
D88102162.451759%

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 9114 8816 3 3 0.03% 0.03%
B 9114 8816 2 2 0.02% 0.02%
C 9114 8816 477 477 5.23% 5.41%
D 9113 8815 107 107 1.17% 1.21%

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 13 251 147607 653.62 1083 1056 224.2
A 0 128 47230 205.94 1083 1056 224.2
A 13 248 25223 107.78 1083 1056 224.2
B 0 219 32747 149.34 1093 1065 212.1
B 12 111 21909 98.25 1093 1065 212.1
B 0 214 21756 97.53 1093 1065 212.1
C 9 68 2494558 10361.15 1027 1031 240.7
C 9 243 1858204 7716.96 1027 1031 240.7
C 1 16 82827 339.88 1027 1031 240.7
D 2 152 356380 1367.31 1041 1007 259.9
D 2 14 308532 1183.22 1041 1007 259.9
D 13 104 78020 296.31 1041 1007 259.9

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