ASTROSAT CZTI

Data Quality Report

Orbit 05471

Creation date: 2024-06-27T14:55:35.863265
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/AS1T01_138T01_9000000698_05471cztM0_level2.evt modeM0/AS1T01_138T01_9000000698_05471cztM0_level2_quad_clean.evt
Size (bytes)447,223,68071,688,960
Size426.5 MB 68.4 MB
Events in quadrant A2,957,267450,766
Events in quadrant B3,912,300435,350
Events in quadrant C2,786,746448,464
Events in quadrant D3,487,223423,902

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126822
B0155101
C0122421
D0144031

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5904370.626694%
B59042814.759485%
C5904170.287940%
D59041512.557588%

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 7244 5905 16 16 0.22% 0.27%
B 7244 5905 197 197 2.72% 3.34%
C 7244 5905 0 0 0.00% 0.00%
D 7244 5904 129 129 1.78% 2.18%

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 0 247 194478 1359.34 695 683 142.6
A 0 50 37487 258.16 695 683 142.6
A 0 226 25352 173.04 695 683 142.6
B 10 16 790631 6005.29 690 676 131.5
B 15 204 293292 2224.49 690 676 131.5
B 11 51 44568 333.67 690 676 131.5
C 9 247 132662 852.01 668 672 154.9
C 1 16 12069 73.57 668 672 154.9
C 8 128 11611 70.61 668 672 154.9
D 2 33 522627 3216.14 659 637 162.3
D 2 152 210888 1295.42 659 637 162.3
D 2 14 81378 497.47 659 637 162.3

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