ASTROSAT CZTI

Data Quality Report

Orbit 12011

Creation date: 2024-06-27T16:21:20.976548
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_024T01_9000001776_12011cztM0_level2.evt modeM0/AS1G08_024T01_9000001776_12011cztM0_level2_quad_clean.evt
Size (bytes)579,263,04077,330,880
Size552.4 MB 73.7 MB
Events in quadrant A3,629,890488,974
Events in quadrant B4,729,617472,767
Events in quadrant C3,228,396478,016
Events in quadrant D5,517,558451,079

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151993
B0184542
C0138332
D0208272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64631312.026922%
B64634156.421167%
C6463580.897416%
D64635939.175306%

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 7649 6464 19 19 0.25% 0.29%
B 7649 6464 205 205 2.68% 3.17%
C 7649 6464 0 0 0.00% 0.00%
D 7648 6463 471 471 6.16% 7.29%

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 1 162 146926 876.48 826 812 166.7
A 1 178 75945 450.7 826 812 166.7
A 1 161 66647 394.92 826 812 166.7
B 4 239 785655 5175.64 811 794 151.6
B 10 245 357386 2351.49 811 794 151.6
B 15 204 134380 880.91 811 794 151.6
C 13 250 88397 475.0 805 809 184.4
C 13 61 5982 28.05 805 809 184.4
C 12 4 2152 7.28 805 809 184.4
D 1 52 1501588 8094.18 773 752 185.4
D 4 95 400695 2156.94 773 752 185.4
D 8 195 163443 877.41 773 752 185.4

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