ASTROSAT CZTI

Data Quality Report

Orbit 30348

Creation date: 2024-06-27T20:14:03.349514
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/AS1A10_053T14_9000004362_30348cztM0_level2.evt modeM0/AS1A10_053T14_9000004362_30348cztM0_level2_quad_clean.evt
Size (bytes)1,251,241,920208,255,680
Size1.2 GB 198.6 MB
Events in quadrant A7,756,0571,306,102
Events in quadrant B12,478,9891,310,291
Events in quadrant C8,094,6181,277,210
Events in quadrant D8,443,2581,268,590

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03380
B03380
C03380
D03380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0337942
B0499082
C0343932
D0357412

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A166051660.999699%
B166052871.728395%
C166053041.830774%
D166051560.939476%

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 18390 16607 0 0 0.00% 0.00%
B 18390 16606 1 1 0.01% 0.01%
C 18390 16607 0 0 0.00% 0.00%
D 18390 16607 46 46 0.25% 0.28%

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 13 254 30238 70.73 2000 1956 399.9
A 8 192 29988 70.1 2000 1956 399.9
A 3 137 20828 47.2 2000 1956 399.9
B 6 159 4604386 12146.59 1969 1916 378.9
B 12 111 48088 121.85 1969 1916 378.9
B 11 111 44095 111.32 1969 1916 378.9
C 14 238 353827 783.09 1920 1938 449.4
C 3 233 141642 310.9 1920 1938 449.4
C 14 254 62342 134.42 1920 1938 449.4
D 2 250 499583 1037.54 1940 1896 479.7
D 8 195 318499 660.03 1940 1896 479.7
D 2 234 77334 157.27 1940 1896 479.7

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