ASTROSAT CZTI

Data Quality Report

Orbit 16398

Creation date: 2024-06-27T17:22:06.204782
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/AS1A05_069T02_9000002422_16398cztM0_level2.evt modeM0/AS1A05_069T02_9000002422_16398cztM0_level2_quad_clean.evt
Size (bytes)436,469,76085,567,680
Size416.2 MB 81.6 MB
Events in quadrant A3,115,614550,326
Events in quadrant B3,510,655569,920
Events in quadrant C3,171,539533,676
Events in quadrant D3,006,048511,102

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130143
B0144012
C0132432
D0130412

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6111110.180003%
B6111300.490918%
C6111420.687285%
D6111380.621829%

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 7437 6113 0 0 0.00% 0.00%
B 7437 6113 7 7 0.09% 0.11%
C 7437 6113 0 0 0.00% 0.00%
D 7437 6113 29 29 0.39% 0.47%

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 15 174 80685 519.96 773 758 153.7
A 15 223 45221 289.25 773 758 153.7
A 15 239 17346 107.91 773 758 153.7
B 15 35 136536 916.18 785 767 148.2
B 10 16 79492 531.25 785 767 148.2
B 0 189 64338 428.98 785 767 148.2
C 3 233 136476 787.18 745 754 172.4
C 14 238 116896 673.62 745 754 172.4
C 10 169 10428 56.11 745 754 172.4
D 12 218 104329 573.52 742 722 180.7
D 10 70 27051 145.75 742 722 180.7
D 7 38 25058 134.71 742 722 180.7

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