ASTROSAT CZTI

Data Quality Report

Orbit 10680

Creation date: 2024-06-27T16:02:23.573762
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/AS1A03_097T01_9000001540_10680cztM0_level2.evt modeM0/AS1A03_097T01_9000001540_10680cztM0_level2_quad_clean.evt
Size (bytes)536,198,40087,534,720
Size511.4 MB 83.5 MB
Events in quadrant A3,517,016568,049
Events in quadrant B5,158,190552,781
Events in quadrant C2,754,373581,453
Events in quadrant D4,414,182540,878

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142322
B0192591
C0121001
D0172521

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58312263.875836%
B583166411.387412%
C5831380.651689%
D58311502.572458%

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 7111 5831 206 206 2.90% 3.53%
B 7111 5832 449 449 6.31% 7.70%
C 7111 5832 4 4 0.06% 0.07%
D 7111 5832 92 92 1.29% 1.58%

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 15 239 545894 3911.58 692 678 139.4
A 13 251 104041 741.56 692 678 139.4
A 0 167 60070 426.1 692 678 139.4
B 4 239 1939376 15174.92 686 671 127.8
B 4 81 222192 1733.92 686 671 127.8
B 0 85 172891 1348.03 686 671 127.8
C 9 236 36161 224.39 694 700 158.0
C 14 234 5302 29.12 694 700 158.0
C 13 61 5280 28.98 694 700 158.0
D 2 16 797904 4905.4 687 670 162.5
D 10 199 243842 1496.24 687 670 162.5
D 8 195 226295 1388.28 687 670 162.5

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