ASTROSAT CZTI

Data Quality Report

Orbit 20231130_A13_073T04_9000005964_level2

Creation date: 2023-12-04T12:52:53.310495
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/AS1A13_073T04_9000005964cztM0_level2.fits modeM0/AS1A13_073T04_9000005964cztM0_level2_quad_clean.evt
Size (bytes)67,446,72063,175,680
Size64.3 MB 60.2 MB
Events in quadrant A388,792363,703
Events in quadrant B377,568346,989
Events in quadrant C398,294351,877
Events in quadrant D335,962308,024

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228260
B0193890
C0163420
D0212770

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77913884.980105%
B77923524.517454%
C7792110.141170%
D77923154.042608%

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 7791 7789 0 0 0.00% 0.00%
B 7792 7789 0 0 0.00% 0.00%
C 7792 7792 0 0 0.00% 0.00%
D 7792 7789 0 0 0.00% 0.00%

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 0 29 335 8.6 101 95 27.9
A 14 95 325 8.24 101 95 27.9
A 7 109 318 7.99 101 95 27.9
B 2 9 393 13.28 99 95 22.4
B 2 8 279 8.2 99 95 22.4
B 3 17 269 7.75 99 95 22.4
C 1 80 320 7.62 105 98 29.2
C 1 81 320 7.62 105 98 29.2
C 3 202 306 7.14 105 98 29.2
D 8 192 253 5.75 96 87 28.9
D 8 176 244 5.44 96 87 28.9
D 6 79 238 5.23 96 87 28.9

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