ASTROSAT CZTI

Data Quality Report

Orbit 44056

Creation date: 2024-06-27T22:58:50.088997
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/AS1A13_025T02_9000005938_44056cztM0_level2.fits modeM0/AS1A13_025T02_9000005938_44056cztM0_level2_quad_clean.evt
Size (bytes)89,233,92013,118,400
Size85.1 MB 12.5 MB
Events in quadrant A670,85498,961
Events in quadrant B422,100107,016
Events in quadrant C481,01795,972
Events in quadrant D1,658,90528,600

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026441
B018261
C020271
D055131

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A860394.534884%
B860101.162791%
C860414.767442%
D86062572.674419%

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 860 860 0 0 0.00% 0.00%
B 860 860 0 0 0.00% 0.00%
C 860 860 16 16 1.86% 1.86%
D 860 860 447 447 51.98% 51.98%

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 275396 12043.61 99 97 22.9
A 15 223 6952 299.89 99 97 22.9
A 7 3 1734 71.61 99 97 22.9
B 0 200 14366 637.94 103 100 22.4
B 12 111 2604 111.97 103 100 22.4
B 14 111 2380 101.96 103 100 22.4
C 14 254 70875 2813.06 99 99 25.2
C 3 233 23023 911.14 99 99 25.2
C 13 61 678 23.01 99 99 25.2
D 1 52 1434390 96434.64 51 48 14.9
D 5 222 15692 1051.79 51 48 14.9
D 2 249 5410 360.5 51 48 14.9

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