ASTROSAT CZTI

Data Quality Report

Orbit 06102

Creation date: 2024-06-27T15:02:46.768316
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_033T01_9000000792_06102cztM0_level2.evt modeM0/AS1G06_033T01_9000000792_06102cztM0_level2_quad_clean.evt
Size (bytes)1,195,649,280220,374,720
Size1.1 GB 210.2 MB
Events in quadrant A10,361,5671,357,116
Events in quadrant B8,787,2351,406,125
Events in quadrant C7,602,0511,393,251
Events in quadrant D8,306,2751,342,616

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042128396
B037309234
C034897241
D036903198

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03482
B03482
C03480
D03486

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0201
B0201
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A170188134.777295%
B170612461.441885%
C17045880.516280%
D170742051.200656%

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 19141 17153 518 518 2.71% 3.02%
B 19141 17154 49 49 0.26% 0.29%
C 19141 17161 0 0 0.00% 0.00%
D 19141 17160 98 98 0.51% 0.57%

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 13 170 1992991 5041.09 1938 1894 395.0
A 8 15 906599 2290.55 1938 1894 395.0
A 12 194 19070 43.49 1938 1894 395.0
B 4 81 291266 758.22 1976 1924 381.6
B 3 64 229520 596.42 1976 1924 381.6
B 10 245 193638 502.39 1976 1924 381.6
C 1 16 124913 277.09 1908 1918 443.9
C 8 128 18564 37.5 1908 1918 443.9
C 13 61 15251 30.04 1908 1918 443.9
D 13 169 249653 522.18 1918 1858 474.5
D 2 63 189383 395.17 1918 1858 474.5
D 2 33 160286 333.86 1918 1858 474.5

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