ASTROSAT CZTI

Data Quality Report

Orbit 47899

Creation date: 2024-08-06T15:11:32.418979
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/AS1A09_038T30_9000006372_47899cztM0_level2.fits modeM0/AS1A09_038T30_9000006372_47899cztM0_level2_quad_clean.evt
Size (bytes)518,817,600111,191,040
Size494.8 MB 106.0 MB
Events in quadrant A6,890,844720,712
Events in quadrant B3,256,647747,933
Events in quadrant C3,212,804745,780
Events in quadrant D5,274,569641,475

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255301
B0152930
C0152340
D0209760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73315016.833993%
B73324215.741953%
C73323234.405346%
D733283511.388434%

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 7331 7331 0 0 0.00% 0.00%
B 7332 7332 0 0 0.00% 0.00%
C 7332 7332 0 0 0.00% 0.00%
D 7332 7332 430 430 5.86% 5.86%

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 3680397 21762.62 807 785 169.1
A 13 6 79127 463.34 807 785 169.1
A 3 137 9757 53.06 807 785 169.1
B 4 171 23548 142.73 808 780 159.5
B 12 111 20560 124.0 808 780 159.5
B 11 111 19467 117.15 808 780 159.5
C 14 254 7069 32.64 819 819 191.5
C 3 233 6182 28.0 819 819 191.5
C 13 61 5575 24.83 819 819 191.5
D 12 2 1506567 7598.32 793 764 198.2
D 2 165 225595 1134.5 793 764 198.2
D 2 37 162486 816.05 793 764 198.2

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