ASTROSAT CZTI

Data Quality Report

Orbit 16061

Creation date: 2024-06-27T17:17:41.936828
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/AS1T02_101T01_9000002372_16061cztM0_level2.evt modeM0/AS1T02_101T01_9000002372_16061cztM0_level2_quad_clean.evt
Size (bytes)398,511,36094,250,880
Size380.1 MB 89.9 MB
Events in quadrant A2,884,858611,936
Events in quadrant B2,916,379622,400
Events in quadrant C2,877,131608,288
Events in quadrant D2,982,503592,911

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124132
B0123831
C0123331
D0127981

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5997530.883775%
B5997540.900450%
C5997741.233950%
D5997550.917125%

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 6928 5998 6 6 0.09% 0.10%
B 6928 5998 3 3 0.04% 0.05%
C 6928 5998 0 0 0.00% 0.00%
D 6928 5998 13 13 0.19% 0.22%

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 3 80 46382 309.06 728 712 147.8
A 12 96 25130 165.24 728 712 147.8
A 9 143 15468 99.86 728 712 147.8
B 7 220 17744 123.49 725 706 138.0
B 12 111 16185 112.19 725 706 138.0
B 4 142 15982 110.72 725 706 138.0
C 14 238 106238 642.57 701 705 164.2
C 3 233 34640 206.62 701 705 164.2
C 13 61 5015 26.24 701 705 164.2
D 12 218 131779 750.63 710 690 174.6
D 1 52 99197 564.06 710 690 174.6
D 2 152 26922 150.21 710 690 174.6

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