ASTROSAT CZTI

Data Quality Report

Orbit 13708

Creation date: 2024-06-27T16:45:02.227778
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/AS1T02_041T01_9000002032_13708cztM0_level2.evt modeM0/AS1T02_041T01_9000002032_13708cztM0_level2_quad_clean.evt
Size (bytes)78,546,24022,233,600
Size74.9 MB 21.2 MB
Events in quadrant A496,019145,667
Events in quadrant B514,868148,640
Events in quadrant C498,681153,840
Events in quadrant D794,829144,416

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02828685
B03000823
C02818670
D03814736

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0268
B0266
C0266
D0266

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D021

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A105550.473934%
B1040100.961538%
C105820.189036%
D1058252.362949%

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 1375 1135 0 0 0.00% 0.00%
B 1376 1114 1 1 0.07% 0.09%
C 1375 1152 0 0 0.00% 0.00%
D 1377 1139 27 27 1.96% 2.37%

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 15 222 3439 121.59 127 124 27.3
A 1 162 2711 94.89 127 124 27.3
A 0 226 1113 36.27 127 124 27.3
B 3 64 12157 465.16 125 122 25.9
B 8 250 9238 352.34 125 122 25.9
B 15 185 5191 195.92 125 122 25.9
C 3 233 14949 494.02 122 123 30.0
C 8 128 3614 116.32 122 123 30.0
C 8 112 1544 47.35 122 123 30.0
D 2 136 334957 11090.14 120 116 30.2
D 2 234 3164 100.95 120 116 30.2
D 13 122 2615 82.77 120 116 30.2

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