ASTROSAT CZTI

Data Quality Report

Orbit 11728

Creation date: 2024-06-27T16:17:30.650179
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_11728cztM0_level2.evt modeM0/AS1G08_006T02_9000001730_11728cztM0_level2_quad_clean.evt
Size (bytes)351,322,56060,203,520
Size335.0 MB 57.4 MB
Events in quadrant A2,837,983386,190
Events in quadrant B2,549,607397,642
Events in quadrant C1,878,914397,855
Events in quadrant D3,110,897369,098

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110442
B0101901
C081571
D0118481

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A38553318.586252%
B38553128.093385%
C3855962.490272%
D38552506.485084%

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 3886 3857 54 54 1.39% 1.40%
B 3886 3857 50 50 1.29% 1.30%
C 3886 3857 0 0 0.00% 0.00%
D 3886 3857 113 113 2.91% 2.93%

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 719653 7286.48 479 466 98.7
A 1 162 82720 833.36 479 466 98.7
A 9 143 49995 501.81 479 466 98.7
B 3 64 230661 2450.05 480 466 94.0
B 4 239 187586 1991.59 480 466 94.0
B 15 204 125941 1335.48 480 466 94.0
C 8 222 4741 38.05 479 480 112.0
C 14 234 3858 30.16 479 480 112.0
C 13 61 3649 28.3 479 480 112.0
D 10 157 559020 4887.64 470 455 114.3
D 1 52 350497 3062.99 470 455 114.3
D 8 195 227979 1990.91 470 455 114.3

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