ASTROSAT CZTI

Data Quality Report

Orbit 14260

Creation date: 2024-06-27T16:52:37.008347
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/AS1G08_014T01_9000002104_14260cztM0_level2.evt modeM0/AS1G08_014T01_9000002104_14260cztM0_level2_quad_clean.evt
Size (bytes)622,912,32076,446,720
Size594.1 MB 72.9 MB
Events in quadrant A3,642,069473,400
Events in quadrant B4,365,538471,344
Events in quadrant C3,941,116443,353
Events in quadrant D6,424,699421,333

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153503
B0175252
C0156342
D0239892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72511562.151427%
B72513945.433733%
C72511061.461867%
D725186111.874224%

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 7862 7253 0 0 0.00% 0.00%
B 7862 7252 133 133 1.69% 1.83%
C 7862 7253 0 0 0.00% 0.00%
D 7862 7253 577 577 7.34% 7.96%

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 12 189 67787 360.41 913 895 185.6
A 0 23 31299 163.81 913 895 185.6
A 8 15 29293 153.0 913 895 185.6
B 0 182 420993 2440.86 892 871 172.1
B 0 229 193387 1118.5 892 871 172.1
B 10 245 169610 980.36 892 871 172.1
C 3 233 530844 2600.49 873 878 203.8
C 13 61 6277 26.49 873 878 203.8
C 8 128 4652 18.52 873 878 203.8
D 13 122 2014487 10041.28 846 826 200.5
D 5 222 556075 2768.79 846 826 200.5
D 8 195 390855 1944.91 846 826 200.5

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