ASTROSAT CZTI

Data Quality Report

Orbit 07211

Creation date: 2024-06-27T15:16:59.848299
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/AS1G06_083T01_9000000984_07211cztM0_level2.evt modeM0/AS1G06_083T01_9000000984_07211cztM0_level2_quad_clean.evt
Size (bytes)471,274,560104,846,400
Size449.4 MB 100.0 MB
Events in quadrant A3,154,184680,028
Events in quadrant B3,253,218695,304
Events in quadrant C3,417,995674,129
Events in quadrant D3,975,081641,924

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143532
B0143721
C0151731
D0164501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69471131.626601%
B6947811.165971%
C69471452.087232%
D69471592.288758%

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 7382 6947 20 20 0.27% 0.29%
B 7382 6948 3 3 0.04% 0.04%
C 7382 6947 60 60 0.81% 0.86%
D 7382 6947 59 59 0.80% 0.85%

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 13 248 77469 478.53 789 768 160.3
A 15 174 12576 73.67 789 768 160.3
A 14 111 8647 49.16 789 768 160.3
B 0 214 76938 505.95 798 780 150.5
B 4 81 45363 296.18 798 780 150.5
B 15 204 15602 98.47 798 780 150.5
C 9 243 388107 2145.43 776 777 180.5
C 13 61 5873 28.23 776 777 180.5
C 12 4 2851 11.49 776 777 180.5
D 8 195 402917 2130.56 770 745 188.8
D 2 216 321223 1697.77 770 745 188.8
D 14 34 128983 679.36 770 745 188.8

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