ASTROSAT CZTI

Data Quality Report

Orbit 14085

Creation date: 2024-06-27T16:50:11.308149
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_022T01_9000002078_14085cztM0_level2.evt modeM0/AS1G08_022T01_9000002078_14085cztM0_level2_quad_clean.evt
Size (bytes)554,682,240100,255,680
Size529.0 MB 95.6 MB
Events in quadrant A3,440,530689,554
Events in quadrant B5,445,187622,755
Events in quadrant C3,059,232659,295
Events in quadrant D4,419,561617,657

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143443
B0203052
C0132742
D0173272

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6402941.468291%
B640295614.932833%
C6402290.452983%
D64022814.389253%

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 7548 6404 15 15 0.20% 0.23%
B 7548 6404 693 693 9.18% 10.82%
C 7548 6404 1 1 0.01% 0.02%
D 7548 6404 227 227 3.01% 3.54%

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 15 222 162994 987.23 811 794 164.3
A 9 143 115769 699.8 811 794 164.3
A 12 189 27243 160.98 811 794 164.3
B 10 16 2389876 17267.19 739 722 138.4
B 0 189 36822 260.91 739 722 138.4
B 0 219 26640 187.32 739 722 138.4
C 3 233 24708 134.72 776 780 177.6
C 0 207 7619 38.5 776 780 177.6
C 13 61 5662 27.48 776 780 177.6
D 1 52 1178234 6565.11 756 735 179.4
D 15 0 128376 711.66 756 735 179.4
D 8 195 103285 571.76 756 735 179.4

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