ASTROSAT CZTI

Data Quality Report

Orbit 19103

Creation date: 2024-06-27T17:59:04.609234
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/AS1T03_098T01_9000002836_19103cztM0_level2.evt modeM0/AS1T03_098T01_9000002836_19103cztM0_level2_quad_clean.evt
Size (bytes)546,145,92067,861,440
Size520.8 MB 64.7 MB
Events in quadrant A3,169,943404,392
Events in quadrant B3,428,098409,112
Events in quadrant C3,293,825400,863
Events in quadrant D6,212,567392,436

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136071
B0144591
C0139321
D0228611

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6420500.778816%
B6421651.012303%
C6421941.463946%
D6421132820.682137%

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 7506 6421 0 0 0.00% 0.00%
B 7507 6423 8 8 0.11% 0.12%
C 7507 6422 1 1 0.01% 0.02%
D 7507 6423 970 970 12.92% 15.10%

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 11 47 9661 53.89 818 801 164.4
A 4 2 7400 40.14 818 801 164.4
A 0 226 7080 38.19 818 801 164.4
B 3 112 97266 620.27 816 798 155.5
B 4 216 57998 367.78 816 798 155.5
B 12 111 17737 108.91 816 798 155.5
C 14 238 123569 662.87 793 798 185.2
C 3 233 55011 292.71 793 798 185.2
C 0 207 26037 136.27 793 798 185.2
D 7 238 2479828 14420.59 711 692 171.9
D 11 176 576797 3351.08 711 692 171.9
D 12 218 172667 1000.34 711 692 171.9

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