ASTROSAT CZTI

Data Quality Report

Orbit 09943

Creation date: 2024-06-27T15:52:44.132990
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_09943cztM0_level2.evt modeM0/AS1G07_016T01_9000001420_09943cztM0_level2_quad_clean.evt
Size (bytes)474,560,64088,453,440
Size452.6 MB 84.4 MB
Events in quadrant A2,949,582574,224
Events in quadrant B3,279,158585,473
Events in quadrant C2,815,322575,544
Events in quadrant D4,914,883518,367

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127709
B01368830
C01246614
D01871728

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6083100.164393%
B6077470.773408%
C608090.148026%
D60793195.247574%

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 7481 6087 2 2 0.03% 0.03%
B 7481 6086 16 16 0.21% 0.26%
C 7481 6087 0 0 0.00% 0.00%
D 7481 6086 367 367 4.91% 6.03%

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 52454 342.01 745 733 151.2
A 15 174 11713 72.61 745 733 151.2
A 9 110 9450 57.64 745 733 151.2
B 4 239 123610 859.59 753 735 142.9
B 6 51 86381 599.15 753 735 142.9
B 4 81 32432 221.74 753 735 142.9
C 13 61 5610 29.53 720 725 165.4
C 12 4 4118 20.51 720 725 165.4
C 14 67 2903 13.16 720 725 165.4
D 12 233 815573 4523.25 692 674 180.2
D 8 195 488919 2710.1 692 674 180.2
D 2 16 455858 2526.58 692 674 180.2

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