ASTROSAT CZTI

Data Quality Report

Orbit 48397

Creation date: 2024-09-09T09:23:27.683335
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_48397cztM0_level2.fits modeM0/AS1C09_004T05_9000006416_48397cztM0_level2_quad_clean.evt
Size (bytes)57,021,12012,628,800
Size54.4 MB 12.0 MB
Events in quadrant A878,95381,713
Events in quadrant B431,01682,638
Events in quadrant C335,98980,961
Events in quadrant D399,58674,474

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031840
B017941
C015930
D017380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79660.753769%
B79570.880503%
C79600.000000%
D796101.256281%

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 796 796 0 0 0.00% 0.00%
B 795 795 5 5 0.63% 0.63%
C 796 796 0 0 0.00% 0.00%
D 796 796 5 5 0.63% 0.63%

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 532920 25433.08 88 85 21.0
A 15 192 3043 141.19 88 85 21.0
A 13 254 1458 65.54 88 85 21.0
B 4 21 49246 2534.18 87 85 19.4
B 5 171 18448 946.59 87 85 19.4
B 0 186 10512 537.5 87 85 19.4
C 15 208 1572 67.06 85 85 22.2
C 14 67 620 24.13 85 85 22.2
C 13 61 575 22.1 85 85 22.2
D 5 222 35314 1511.31 85 82 23.3
D 2 249 29489 1261.44 85 82 23.3
D 2 233 5096 215.08 85 82 23.3

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