ASTROSAT CZTI

Data Quality Report

Orbit 08712

Creation date: 2024-06-27T15:36:26.774053
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_027T01_9000001210_08712cztM0_level2.evt modeM0/AS1G07_027T01_9000001210_08712cztM0_level2_quad_clean.evt
Size (bytes)173,200,32025,879,680
Size165.2 MB 24.7 MB
Events in quadrant A1,245,197154,569
Events in quadrant B1,248,276155,627
Events in quadrant C1,222,641154,177
Events in quadrant D1,366,132148,114

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051232
B051220
C049940
D055360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A236450.211506%
B236530.126850%
C236510.042283%
D2365431.818182%

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 2365 2365 0 0 0.00% 0.00%
B 2365 2365 0 0 0.00% 0.00%
C 2365 2365 0 0 0.00% 0.00%
D 2365 2365 38 38 1.61% 1.61%

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 13 251 16989 257.45 317 312 64.8
A 15 174 4033 57.44 317 312 64.8
A 5 16 3285 45.9 317 312 64.8
B 0 219 7493 118.9 318 312 60.4
B 12 111 5540 86.56 318 312 60.4
B 11 111 4673 72.21 318 312 60.4
C 13 61 2374 28.47 313 315 72.3
C 8 222 1309 13.75 313 315 72.3
C 12 4 850 7.4 313 315 72.3
D 7 55 79066 958.19 306 300 82.2
D 1 52 43295 523.04 306 300 82.2
D 12 233 20372 244.18 306 300 82.2

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