ASTROSAT CZTI

Data Quality Report

Orbit 06745

Creation date: 2024-06-27T15:11:11.087340
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_168T10_9000000932_06745cztM0_level2.evt modeM0/AS1G06_168T10_9000000932_06745cztM0_level2_quad_clean.evt
Size (bytes)641,214,720100,903,680
Size611.5 MB 96.2 MB
Events in quadrant A3,764,045659,296
Events in quadrant B3,802,918675,676
Events in quadrant C3,428,524661,909
Events in quadrant D7,942,202563,636

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159614
B0160003
C0148753
D0283913

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71071261.772900%
B71071532.152807%
C7107550.773885%
D7107159122.386380%

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 9737 7110 20 20 0.21% 0.28%
B 9737 7110 16 16 0.16% 0.23%
C 9737 7110 0 0 0.00% 0.00%
D 9737 7110 1389 1389 14.27% 19.54%

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 13 251 106120 584.09 885 870 180.2
A 13 248 83152 456.63 885 870 180.2
A 4 2 80408 441.4 885 870 180.2
B 4 48 98655 571.77 897 878 171.0
B 4 80 47958 275.31 897 878 171.0
B 0 214 39143 223.76 897 878 171.0
C 9 247 34542 166.55 867 874 202.1
C 12 4 8130 35.9 867 874 202.1
C 13 61 6878 29.7 867 874 202.1
D 2 33 3720261 19520.07 775 752 190.5
D 14 34 487167 2552.72 775 752 190.5
D 2 152 344400 1803.47 775 752 190.5

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