ASTROSAT CZTI

Data Quality Report

Orbit 30913

Creation date: 2024-06-27T20:21:06.920262
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/AS1C06_007T01_9000004470_30913cztM0_level2.evt modeM0/AS1C06_007T01_9000004470_30913cztM0_level2_quad_clean.evt
Size (bytes)556,496,64082,998,720
Size530.7 MB 79.2 MB
Events in quadrant A3,073,276541,601
Events in quadrant B5,037,243538,833
Events in quadrant C3,447,757500,890
Events in quadrant D4,871,775495,394

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133601
B0192833
C0142571
D0185531

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6246911.456932%
B6246741.184758%
C62465158.245277%
D62463345.347422%

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 7166 6246 40 40 0.56% 0.64%
B 7166 6246 5 5 0.07% 0.08%
C 7166 6246 46 46 0.64% 0.74%
D 7165 6245 288 288 4.02% 4.61%

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 0 13 202458 1354.65 741 726 148.9
A 13 254 12510 79.13 741 726 148.9
A 3 137 7240 43.74 741 726 148.9
B 6 159 1977650 14088.78 737 717 140.3
B 0 190 53383 375.33 737 717 140.3
B 6 36 43526 305.08 737 717 140.3
C 14 238 242053 1484.61 691 696 162.6
C 0 10 208991 1281.24 691 696 162.6
C 14 254 185380 1136.01 691 696 162.6
D 8 195 853747 4955.92 713 693 172.1
D 12 233 798271 4633.62 713 693 172.1
D 7 69 127402 736.13 713 693 172.1

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