ASTROSAT CZTI

Data Quality Report

Orbit 28733

Creation date: 2024-06-27T19:55:34.153278
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/AS1A10_123T07_9000004124_28733cztM0_level2.evt modeM0/AS1A10_123T07_9000004124_28733cztM0_level2_quad_clean.evt
Size (bytes)481,317,12093,700,800
Size459.0 MB 89.4 MB
Events in quadrant A3,141,226626,421
Events in quadrant B3,244,505629,658
Events in quadrant C3,117,286590,755
Events in quadrant D4,679,304584,624

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125281
B0129081
C0124921
D0180031

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5813961.651471%
B58141332.287582%
C58141622.786378%
D58142253.869969%

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 7123 5813 0 0 0.00% 0.00%
B 7124 5814 24 24 0.34% 0.41%
C 7124 5814 0 0 0.00% 0.00%
D 7124 5814 156 156 2.19% 2.68%

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 7 192 25112 153.37 805 792 158.6
A 13 254 11903 70.07 805 792 158.6
A 14 239 8327 47.52 805 792 158.6
B 4 80 124144 854.35 779 762 144.4
B 15 36 34246 231.86 779 762 144.4
B 12 111 17107 113.18 779 762 144.4
C 14 238 155362 901.68 748 754 171.5
C 14 254 43963 252.0 748 754 171.5
C 13 61 5094 25.31 748 754 171.5
D 1 52 1046393 5855.73 765 745 178.6
D 8 195 578295 3234.33 765 745 178.6
D 12 233 126282 703.02 765 745 178.6

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