ASTROSAT CZTI

Data Quality Report

Orbit 48489

Creation date: 2024-09-15T10:21:30.313648
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_081T01_9000006428_48489cztM0_level2.fits modeM0/AS1A13_081T01_9000006428_48489cztM0_level2_quad_clean.evt
Size (bytes)436,302,720101,450,880
Size416.1 MB 96.8 MB
Events in quadrant A6,420,945669,941
Events in quadrant B3,145,402697,525
Events in quadrant C2,598,158669,816
Events in quadrant D3,488,789587,735

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234001
B0141721
C0129111
D0153351

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63981592.485152%
B63981292.016255%
C639870.109409%
D63982553.985621%

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 7529 6398 44 44 0.58% 0.69%
B 7529 6399 83 83 1.10% 1.30%
C 7529 6399 0 0 0.00% 0.00%
D 7529 6398 239 239 3.17% 3.74%

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 3707720 26434.17 668 652 140.2
A 12 189 123670 877.21 668 652 140.2
A 13 254 11420 76.78 668 652 140.2
B 0 186 331085 2538.62 672 652 130.2
B 8 234 110541 844.24 672 652 130.2
B 5 255 30641 230.4 672 652 130.2
C 3 233 14904 92.0 661 666 154.8
C 1 3 4574 25.25 661 666 154.8
C 13 61 4406 24.17 661 666 154.8
D 10 204 481638 3044.09 635 614 158.0
D 7 55 169181 1066.75 635 614 158.0
D 2 249 139135 876.61 635 614 158.0

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