ASTROSAT CZTI

Data Quality Report

Orbit 32089

Creation date: 2024-06-27T20:36:21.873940
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/AS1T04_051T01_9000004686_32089cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32089cztM0_level2_quad_clean.evt
Size (bytes)468,714,24055,872,000
Size447.0 MB 53.3 MB
Events in quadrant A2,074,652378,575
Events in quadrant B4,644,353350,883
Events in quadrant C2,402,986356,084
Events in quadrant D4,804,149325,612

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084691
B0164622
C096441
D0170381

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3965300.756620%
B396460715.312815%
C39643278.249243%
D396465216.448032%

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 5190 3965 0 0 0.00% 0.00%
B 5189 3964 353 353 6.80% 8.91%
C 5189 3964 17 17 0.33% 0.43%
D 5189 3964 640 640 12.33% 16.15%

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 13 254 7395 64.55 535 527 106.4
A 0 230 6960 60.46 535 527 106.4
A 0 226 5085 42.84 535 527 106.4
B 10 245 1449862 15052.38 510 498 96.3
B 6 159 1050801 10907.93 510 498 96.3
B 5 172 112331 1161.44 510 498 96.3
C 14 238 158809 1374.93 499 504 115.1
C 14 254 106701 922.35 499 504 115.1
C 0 10 90167 778.75 499 504 115.1
D 12 227 2296264 19657.95 492 479 116.8
D 8 195 446423 3818.45 492 479 116.8
D 12 233 78044 664.16 492 479 116.8

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