ASTROSAT CZTI

Data Quality Report

Orbit 48204

Creation date: 2024-08-27T14:32:10.045099
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/AS1C09_004T05_9000006416_48204cztM0_level2.fits modeM0/AS1C09_004T05_9000006416_48204cztM0_level2_quad_clean.evt
Size (bytes)557,879,04097,205,760
Size532.0 MB 92.7 MB
Events in quadrant A8,020,204827,332
Events in quadrant B1,329,84752,431
Events in quadrant C3,624,439797,600
Events in quadrant D7,071,552726,666

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0289220
B081990
C0166650
D0263590

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76902593.368010%
B7690768999.986996%
C76901011.313394%
D76905587.256177%

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 7690 7690 3 3 0.04% 0.04%
B 7689 7689 0 0 0.00% 0.00%
C 7690 7690 60 60 0.78% 0.78%
D 7690 7690 356 356 4.63% 4.63%

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 83 4711847 26715.97 835 816 176.3
A 14 235 33758 186.81 835 816 176.3
A 0 31 24564 134.67 835 816 176.3
B 2 177 1060662 79841.35 55 54 13.3
B 4 21 22089 1658.77 55 54 13.3
B 5 255 10490 785.61 55 54 13.3
C 12 2 316138 1610.75 830 829 195.8
C 11 16 48735 244.73 830 829 195.8
C 0 207 6568 29.32 830 829 195.8
D 2 165 3205233 15893.76 806 780 201.6
D 12 128 423742 2097.85 806 780 201.6
D 11 192 112565 554.44 806 780 201.6

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