ASTROSAT CZTI

Data Quality Report

Orbit 22019

Creation date: 2024-06-27T18:35:24.851383
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/AS1A07_059T05_9000003252_22019cztM0_level2.evt modeM0/AS1A07_059T05_9000003252_22019cztM0_level2_quad_clean.evt
Size (bytes)533,747,520100,512,000
Size509.0 MB 95.9 MB
Events in quadrant A3,449,777656,606
Events in quadrant B3,609,510668,209
Events in quadrant C3,486,401634,141
Events in quadrant D5,146,780600,051

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146112
B0151192
C0147182
D0199472

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6958701.006036%
B69581011.451567%
C69581422.040816%
D69583094.440931%

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 7593 6958 0 0 0.00% 0.00%
B 7593 6958 13 13 0.17% 0.19%
C 7593 6958 18 18 0.24% 0.26%
D 7593 6959 248 248 3.27% 3.56%

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 3 1 74377 420.33 874 855 174.9
A 13 254 12716 67.81 874 855 174.9
A 0 226 7634 38.76 874 855 174.9
B 3 64 136562 822.77 869 849 164.9
B 0 230 27351 160.67 869 849 164.9
B 12 111 19220 111.38 869 849 164.9
C 14 238 131711 662.55 837 841 197.5
C 9 54 83712 419.55 837 841 197.5
C 0 10 9455 43.61 837 841 197.5
D 1 52 793633 3885.5 838 814 204.0
D 7 238 779046 3814.01 838 814 204.0
D 11 176 243770 1190.69 838 814 204.0

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