ASTROSAT CZTI

Data Quality Report

Orbit 10006

Creation date: 2024-06-27T15:53:35.043206
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_002T02_9000001432_10006cztM0_level2.evt modeM0/AS1G07_002T02_9000001432_10006cztM0_level2_quad_clean.evt
Size (bytes)47,053,4409,964,800
Size44.9 MB 9.5 MB
Events in quadrant A358,74463,099
Events in quadrant B390,31872,946
Events in quadrant C356,70568,874
Events in quadrant D268,51240,320

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169147
B0167153
C0170152
D0170152

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01751116015
B01734515689
C01706515520
D02454323478

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064
B064
C065
D064

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A706101.416431%
B792172.146465%
C75250.664894%
D41530.722892%

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 9067 1238 0 0 0.00% 0.00%
B 9047 1393 0 0 0.00% 0.00%
C 9069 1327 0 0 0.00% 0.00%
D 9067 745 0 0 0.00% 0.00%

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 27093 1373.65 86 84 19.7
A 0 226 751 33.92 86 84 19.7
A 12 194 709 31.79 86 84 19.7
B 10 252 4782 218.74 98 95 21.4
B 0 187 2497 112.09 98 95 21.4
B 12 111 2237 99.95 98 95 21.4
C 13 61 664 24.36 91 91 23.5
C 14 67 425 14.2 91 91 23.5
C 8 222 266 7.44 91 91 23.5
D 8 195 33381 2377.96 48 47 14.0
D 2 16 18316 1303.26 48 47 14.0
D 1 52 18303 1302.34 48 47 14.0

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