ASTROSAT CZTI

Data Quality Report

Orbit 48578

Creation date: 2024-09-21T10:26:48.830107
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/AS1A13_037T01_9000006436_48578cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48578cztM0_level2_quad_clean.evt
Size (bytes)553,150,08099,167,040
Size527.5 MB 94.6 MB
Events in quadrant A6,635,352673,957
Events in quadrant B3,784,737689,831
Events in quadrant C2,659,569689,593
Events in quadrant D6,903,645505,873

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241434
B0158932
C0128932
D0253012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63522193.447733%
B63523605.667506%
C635280.125945%
D6352126719.946474%

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 7507 6353 92 92 1.23% 1.45%
B 7507 6353 217 217 2.89% 3.42%
C 7507 6353 0 0 0.00% 0.00%
D 7507 6353 1273 1273 16.96% 20.04%

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 3942037 27869.99 683 670 141.4
A 0 31 28572 197.3 683 670 141.4
A 13 248 27944 192.86 683 670 141.4
B 12 16 991723 7372.69 681 658 134.4
B 5 255 66189 487.5 681 658 134.4
B 0 183 20946 150.93 681 658 134.4
C 13 61 4363 22.69 681 684 162.1
C 12 250 2564 11.6 681 684 162.1
C 14 67 2278 9.83 681 684 162.1
D 2 165 4376400 28695.68 607 587 152.5
D 13 171 103711 676.27 607 587 152.5
D 5 171 38079 245.86 607 587 152.5

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