ASTROSAT CZTI

Data Quality Report

Orbit 11733

Creation date: 2024-06-27T16:17:33.018446
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_006T02_9000001730_11733cztM0_level2.evt modeM0/AS1G08_006T02_9000001730_11733cztM0_level2_quad_clean.evt
Size (bytes)702,624,960125,346,240
Size670.1 MB 119.5 MB
Events in quadrant A5,986,074812,846
Events in quadrant B6,026,144798,612
Events in quadrant C3,695,771826,375
Events in quadrant D5,011,598783,873

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235812
B0234052
C0167942
D0206242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82642993.618103%
B82647168.664085%
C8264320.387222%
D82642813.400290%

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 9285 8267 62 62 0.67% 0.75%
B 9285 8267 423 423 4.56% 5.12%
C 9285 8267 0 0 0.00% 0.00%
D 9285 8266 200 200 2.15% 2.42%

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 1628173 8235.52 966 943 197.6
A 9 143 202297 1019.07 966 943 197.6
A 1 162 138282 695.08 966 943 197.6
B 4 239 1570136 8614.25 950 928 182.2
B 15 204 305322 1670.99 950 928 182.2
B 3 64 193036 1054.59 950 928 182.2
C 12 4 8674 35.34 944 946 218.6
C 13 61 7063 27.98 944 946 218.6
C 8 222 3407 11.26 944 946 218.6
D 2 33 414681 1838.24 928 896 225.1
D 4 95 273165 1209.55 928 896 225.1
D 8 195 267501 1184.39 928 896 225.1

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