ASTROSAT CZTI

Data Quality Report

Orbit 10054

Creation date: 2024-06-27T15:54:23.426329
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/AS1A03_033T01_9000001438_10054cztM0_level2.evt modeM0/AS1A03_033T01_9000001438_10054cztM0_level2_quad_clean.evt
Size (bytes)1,191,432,960208,088,640
Size1.1 GB 198.4 MB
Events in quadrant A8,342,0851,281,637
Events in quadrant B8,252,7171,305,866
Events in quadrant C7,683,2711,278,344
Events in quadrant D10,616,4451,226,451

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0379871203
B0372641061
C036540998
D0444681625

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A036814
B03688
C036812
D036812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A175492301.310616%
B175752161.229018%
C175921280.727603%
D174814212.408329%

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 20342 17980 27 27 0.13% 0.15%
B 20342 17991 21 21 0.10% 0.12%
C 20342 18009 0 0 0.00% 0.00%
D 20342 17958 264 264 1.30% 1.47%

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 15 239 449272 1099.72 2021 1977 406.7
A 8 15 100926 243.28 2021 1977 406.7
A 0 226 18339 40.23 2021 1977 406.7
B 10 247 149833 381.39 2031 1979 387.7
B 0 214 120560 305.88 2031 1979 387.7
B 12 111 43868 108.05 2031 1979 387.7
C 14 67 16187 31.42 1963 1970 452.5
C 13 61 14423 27.52 1963 1970 452.5
C 8 222 11005 19.97 1963 1970 452.5
D 2 16 1809251 3700.45 1933 1881 488.4
D 8 195 448052 913.5 1933 1881 488.4
D 1 52 419290 854.61 1933 1881 488.4

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