ASTROSAT CZTI

Data Quality Report

Orbit 48607

Creation date: 2024-09-23T09:22:12.563918
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_48607cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48607cztM0_level2_quad_clean.evt
Size (bytes)502,084,800104,955,840
Size478.8 MB 100.1 MB
Events in quadrant A7,487,047675,338
Events in quadrant B3,926,708715,268
Events in quadrant C2,724,795707,578
Events in quadrant D3,944,487627,453

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0269062
B0162732
C0131892
D0166132

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64794496.930082%
B64783715.727076%
C6478130.200679%
D64781472.269219%

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 7629 6480 219 219 2.87% 3.38%
B 7628 6479 203 203 2.66% 3.13%
C 7628 6479 0 0 0.00% 0.00%
D 7628 6479 93 93 1.22% 1.44%

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 4001055 27739.92 690 675 144.2
A 13 248 807265 5593.15 690 675 144.2
A 13 254 11609 75.82 690 675 144.2
B 12 16 1144951 8408.72 695 675 136.1
B 0 183 23723 169.37 695 675 136.1
B 12 111 17220 121.58 695 675 136.1
C 12 249 5528 29.53 696 700 163.5
C 13 61 4627 24.02 696 700 163.5
C 12 250 2600 11.62 696 700 163.5
D 2 165 1273498 7458.0 679 657 170.7
D 2 234 30779 176.49 679 657 170.7
D 2 233 24600 140.29 679 657 170.7

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