ASTROSAT CZTI

Data Quality Report

Orbit 24346

Creation date: 2024-06-27T19:05:00.816223
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/AS1A07_145T01_9000003594_24346cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24346cztM0_level2_quad_clean.evt
Size (bytes)582,344,640113,209,920
Size555.4 MB 108.0 MB
Events in quadrant A3,113,255757,414
Events in quadrant B3,207,146796,121
Events in quadrant C5,389,623747,961
Events in quadrant D5,512,631699,782

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131012
B0133712
C0203342
D0206592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6114180.294406%
B6114290.474321%
C61142363.859993%
D61144487.327445%

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 7479 6115 0 0 0.00% 0.00%
B 7479 6115 0 0 0.00% 0.00%
C 7479 6115 0 0 0.00% 0.00%
D 7479 6115 367 367 4.91% 6.00%

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 2 79 11091 64.16 805 791 160.5
A 13 254 8958 50.88 805 791 160.5
A 0 226 6905 38.09 805 791 160.5
B 12 111 17887 111.57 818 801 153.1
B 11 111 16029 99.44 818 801 153.1
B 14 111 14321 88.29 818 801 153.1
C 7 247 2167351 11918.19 787 794 181.8
C 14 238 127790 698.6 787 794 181.8
C 2 16 12478 64.27 787 794 181.8
D 1 52 957596 5127.23 769 747 186.6
D 8 195 937372 5018.86 769 747 186.6
D 9 35 339285 1814.04 769 747 186.6

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