ASTROSAT CZTI

Data Quality Report

Orbit 09952

Creation date: 2024-06-27T15:52:51.581883
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/AS1G07_016T01_9000001420_09952cztM0_level2.evt modeM0/AS1G07_016T01_9000001420_09952cztM0_level2_quad_clean.evt
Size (bytes)431,616,96081,296,640
Size411.6 MB 77.5 MB
Events in quadrant A2,878,117525,901
Events in quadrant B3,280,402518,885
Events in quadrant C2,631,965530,667
Events in quadrant D3,896,345490,611

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01226
B01220
C01228
D01217

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132531026
B0147021399
C012716958
D0169931680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C091
D091

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5674540.951710%
B56231382.454206%
C5689400.703111%
D56041783.176303%

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 6943 5958 0 0 0.00% 0.00%
B 6942 5911 64 64 0.92% 1.08%
C 6943 5945 0 0 0.00% 0.00%
D 6941 5873 132 132 1.90% 2.25%

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 15 264040 1902.08 666 650 138.5
A 14 254 19256 134.36 666 650 138.5
A 15 174 13554 93.19 666 650 138.5
B 4 81 355479 2787.56 656 641 127.3
B 4 239 133902 1046.88 656 641 127.3
B 0 214 127696 998.13 656 641 127.3
C 8 208 99036 651.02 645 648 151.1
C 7 247 7135 42.92 645 648 151.1
C 13 61 4995 28.76 645 648 151.1
D 8 195 423148 2495.88 630 614 169.3
D 10 253 230973 1360.71 630 614 169.3
D 2 152 218407 1286.49 630 614 169.3

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