ASTROSAT CZTI

Data Quality Report

Orbit 07728

Creation date: 2024-06-27T15:23:13.331640
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/AS1G06_064T01_9000001066_07728cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07728cztM0_level2_quad_clean.evt
Size (bytes)389,459,52080,219,520
Size371.4 MB 76.5 MB
Events in quadrant A2,703,681512,703
Events in quadrant B2,794,224525,254
Events in quadrant C3,133,412509,241
Events in quadrant D2,777,872485,678

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116082
B0118641
C0129961
D0119851

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5671280.493740%
B5671450.793511%
C56711061.869159%
D5671350.617175%

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 6966 5673 0 0 0.00% 0.00%
B 6966 5673 11 11 0.16% 0.19%
C 6966 5673 54 54 0.78% 0.95%
D 6966 5673 11 11 0.16% 0.19%

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 15 234 8118 52.78 697 682 140.9
A 0 226 6712 42.8 697 682 140.9
A 12 194 6282 39.74 697 682 140.9
B 0 230 45011 336.15 700 686 131.9
B 4 170 12959 93.08 700 686 131.9
B 12 111 12498 89.58 700 686 131.9
C 9 68 441728 2788.07 688 693 158.2
C 13 61 5224 28.64 688 693 158.2
C 12 4 4607 24.74 688 693 158.2
D 2 152 108018 641.63 688 668 167.3
D 13 104 31170 182.31 688 668 167.3
D 5 233 19763 114.13 688 668 167.3

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