ASTROSAT CZTI

Data Quality Report

Orbit 48336

Creation date: 2024-09-05T06:08:52.098099
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_029T01_9000006422_48336cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48336cztM0_level2_quad_clean.evt
Size (bytes)656,922,240137,076,480
Size626.5 MB 130.7 MB
Events in quadrant A9,068,302909,562
Events in quadrant B5,489,107930,127
Events in quadrant C3,989,168905,255
Events in quadrant D5,102,140805,475

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330280
B0222870
C0182260
D0213310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A86343213.717860%
B86343113.602038%
C8634370.428538%
D86352683.103648%

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 8634 8634 16 16 0.19% 0.19%
B 8634 8634 117 117 1.36% 1.36%
C 8634 8634 14 14 0.16% 0.16%
D 8635 8635 218 218 2.52% 2.52%

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 5168866 24714.32 986 965 209.1
A 13 248 58719 276.2 986 965 209.1
A 0 31 21969 100.45 986 965 209.1
B 5 255 539893 2773.8 981 951 194.3
B 4 21 343964 1765.4 981 951 194.3
B 5 79 333482 1711.45 981 951 194.3
C 15 208 161528 697.72 968 971 230.1
C 12 2 19852 82.05 968 971 230.1
C 12 249 18091 74.4 968 971 230.1
D 13 29 601697 2440.49 959 925 246.2
D 2 249 256013 1036.23 959 925 246.2
D 12 233 216098 874.09 959 925 246.2

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