ASTROSAT CZTI

Data Quality Report

Orbit 17583

Creation date: 2024-06-27T17:38:15.361252
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_056T01_9000002604_17583cztM0_level2.evt modeM0/AS1A05_056T01_9000002604_17583cztM0_level2_quad_clean.evt
Size (bytes)472,472,64094,034,880
Size450.6 MB 89.7 MB
Events in quadrant A3,318,474604,985
Events in quadrant B3,349,610604,516
Events in quadrant C3,619,882578,977
Events in quadrant D3,550,488576,754

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142492
B0142172
C0147172
D0152752

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6927260.375343%
B6927370.534142%
C6927640.923921%
D6927490.707377%

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 8967 6929 4 4 0.04% 0.06%
B 8967 6929 0 0 0.00% 0.00%
C 8967 6929 0 0 0.00% 0.00%
D 8967 6929 30 30 0.33% 0.43%

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 14 237 43732 251.55 852 836 170.5
A 0 226 7303 37.92 852 836 170.5
A 3 137 6196 31.43 852 836 170.5
B 12 111 19767 115.65 854 832 163.7
B 11 111 16897 98.12 854 832 163.7
B 14 111 14955 86.26 854 832 163.7
C 3 233 258791 1323.1 824 828 195.0
C 14 238 127930 651.91 824 828 195.0
C 5 218 17460 85.3 824 828 195.0
D 5 222 217346 1071.25 831 805 202.1
D 13 189 177632 874.78 831 805 202.1
D 2 234 24070 115.09 831 805 202.1

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