ASTROSAT CZTI

Data Quality Report

Orbit 13568

Creation date: 2024-06-27T16:42:48.803034
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_047T01_9000002002_13568cztM0_level2.evt modeM0/AS1G08_047T01_9000002002_13568cztM0_level2_quad_clean.evt
Size (bytes)528,145,920101,548,800
Size503.7 MB 96.8 MB
Events in quadrant A3,426,394649,041
Events in quadrant B3,898,452648,136
Events in quadrant C3,558,371644,048
Events in quadrant D4,605,907615,557

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152952
B0165691
C0154891
D0189041

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7455140.187793%
B74551572.105969%
C7455200.268276%
D74551181.582830%

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 7856 7457 0 0 0.00% 0.00%
B 7856 7457 59 59 0.75% 0.79%
C 7856 7457 0 0 0.00% 0.00%
D 7856 7457 107 107 1.36% 1.43%

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 1 162 21797 116.52 877 857 179.7
A 0 226 8136 40.5 877 857 179.7
A 1 178 7646 37.78 877 857 179.7
B 0 182 204990 1212.01 871 851 168.4
B 3 64 59190 346.37 871 851 168.4
B 4 142 53408 312.04 871 851 168.4
C 3 233 266150 1351.54 842 846 196.3
C 0 207 8684 39.93 842 846 196.3
C 13 61 6081 26.67 842 846 196.3
D 8 195 478647 2335.59 838 812 204.6
D 5 222 422895 2063.08 838 812 204.6
D 2 14 147704 717.98 838 812 204.6

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