ASTROSAT CZTI

Data Quality Report

Orbit 17432

Creation date: 2024-06-27T17:36:28.187414
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/AS1A05_198T01_9000002578_17432cztM0_level2.evt modeM0/AS1A05_198T01_9000002578_17432cztM0_level2_quad_clean.evt
Size (bytes)634,011,840100,886,400
Size604.6 MB 96.2 MB
Events in quadrant A6,011,571606,708
Events in quadrant B3,992,785658,938
Events in quadrant C3,829,782629,409
Events in quadrant D4,837,030616,015

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230032
B0169402
C0162902
D0196672

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A782087211.150895%
B78201652.109974%
C78211511.930699%
D78212072.646720%

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 8240 7823 707 707 8.58% 9.04%
B 8240 7823 9 9 0.11% 0.12%
C 8241 7824 0 0 0.00% 0.00%
D 8241 7824 119 119 1.44% 1.52%

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 10 253 2419222 12935.66 914 895 187.0
A 14 238 28419 147.23 914 895 187.0
A 14 237 25439 131.29 914 895 187.0
B 7 220 64125 345.01 956 932 183.2
B 15 35 52390 280.94 956 932 183.2
B 0 219 50791 272.21 956 932 183.2
C 14 238 138075 642.49 907 913 213.5
C 5 218 121741 565.98 907 913 213.5
C 3 233 23068 103.78 907 913 213.5
D 12 110 527162 2328.09 919 889 226.1
D 13 232 395028 1743.57 919 889 226.1
D 7 238 147861 650.16 919 889 226.1

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