ASTROSAT CZTI

Data Quality Report

Orbit 08790

Creation date: 2024-06-27T15:37:16.570169
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/AS1G07_010T03_9000001224_08790cztM0_level2.evt modeM0/AS1G07_010T03_9000001224_08790cztM0_level2_quad_clean.evt
Size (bytes)695,972,160100,405,440
Size663.7 MB 95.8 MB
Events in quadrant A4,197,215648,329
Events in quadrant B3,577,858671,240
Events in quadrant C3,504,043666,546
Events in quadrant D9,288,378529,984

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016214
B01620
C01620
D01624

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018457649
B016410544
C016311507
D0350612267

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75692623.461488%
B7580871.147757%
C7597320.421219%
D7333178724.369290%

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 8426 7807 119 119 1.41% 1.52%
B 8426 7811 3 3 0.04% 0.04%
C 8426 7822 0 0 0.00% 0.00%
D 8426 7683 1309 1309 15.54% 17.04%

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 15 223 497326 2705.82 888 866 183.5
A 15 239 140729 762.29 888 866 183.5
A 8 5 91129 491.95 888 866 183.5
B 4 173 53208 301.31 905 878 173.7
B 12 111 19683 108.28 905 878 173.7
B 11 111 15827 86.07 905 878 173.7
C 14 67 26125 121.11 888 891 208.4
C 14 234 6773 28.23 888 891 208.4
C 13 61 6733 28.04 888 891 208.4
D 2 16 5976525 31837.27 772 753 187.7
D 2 152 89448 472.54 772 753 187.7
D 2 14 68481 360.84 772 753 187.7

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