ASTROSAT CZTI

Data Quality Report

Orbit 20230529_C06_010T05_9000005670_level2

Creation date: 2023-05-30T20:20:52.250611
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/AS1C06_010T05_9000005670cztM0_level2.fits modeM0/AS1C06_010T05_9000005670cztM0_level2_quad_clean.evt
Size (bytes)160,778,880235,886,400
Size153.3 MB 225.0 MB
Events in quadrant A956,5201,538,189
Events in quadrant B920,8461,562,022
Events in quadrant C919,4521,444,142
Events in quadrant D799,2101,326,863

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03760
B03760
C03760
D03760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0392840
B0386970
C0406850
D0463120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A18478450.243533%
B18477300.162364%
C184784792.592272%
D184785312.873688%

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 26070 18478 0 0 0.00% 0.00%
B 26070 18478 0 0 0.00% 0.00%
C 26070 18430 0 0 0.00% 0.00%
D 26070 18475 0 0 0.00% 0.00%

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 0 29 779 8.38 250 236 64.8
A 9 19 762 8.12 250 236 64.8
A 7 110 756 8.03 250 236 64.8
B 2 9 787 11.29 244 233 49.1
B 5 128 665 8.8 244 233 49.1
B 3 80 659 8.68 244 233 49.1
C 3 202 745 8.12 243 227 63.8
C 1 81 726 7.82 243 227 63.8
C 3 203 720 7.72 243 227 63.8
D 7 3 619 6.52 228 208 63.1
D 6 67 575 5.82 228 208 63.1
D 6 83 568 5.71 228 208 63.1

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