ASTROSAT CZTI

Data Quality Report

Orbit 43584

Creation date: 2024-06-27T22:53:25.471257
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/AS1A10_094T27_9000005886_43584cztM0_level2.fits modeM0/AS1A10_094T27_9000005886_43584cztM0_level2_quad_clean.evt
Size (bytes)36,334,0801,912,320
Size34.7 MB 1.8 MB
Events in quadrant A171,80916,861
Events in quadrant B182,35416,120
Events in quadrant C493,802725
Events in quadrant D477,0821,226

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1140513674655784140509855088686
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0926266
B01034356
C02495887
D02426872

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051
B062
C040
D051

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A22010.454545%
B2173013.824885%
C20419093.137255%
D19919296.482412%

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 3078 237 1 1 0.03% 0.42%
B 3068 230 17 17 0.55% 7.39%
C 2139 208 177 177 8.27% 85.10%
D 2138 199 172 172 8.04% 86.43%

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 10 99 30963 4681.81 22 21 6.6
A 10 83 21717 3282.8 22 21 6.6
A 0 228 11344 1713.27 22 21 6.6
B 4 206 49257 8049.18 21 20 6.1
B 3 25 30934 5053.77 21 20 6.1
B 0 230 5236 852.7 21 20 6.1
C 15 142 224638 59279.02 9 9 3.8
C 15 174 154284 40712.78 9 9 3.8
C 15 126 22547 5947.72 9 9 3.8
D 4 216 241053 70435.79 7 7 3.4
D 4 212 50756 14829.31 7 7 3.4
D 13 187 25890 7563.24 7 7 3.4

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