ASTROSAT CZTI

Data Quality Report

Orbit 20240208_A13_038T03_9000006058_level2

Creation date: 2024-02-10T17:09:48.893508
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_038T03_9000006058cztM0_level2.fits modeM0/AS1A13_038T03_9000006058cztM0_level2_quad_clean.evt
Size (bytes)588,104,640564,739,200
Size560.9 MB 538.6 MB
Events in quadrant A3,478,9363,287,589
Events in quadrant B3,406,4683,356,912
Events in quadrant C3,566,7423,238,366
Events in quadrant D2,864,7882,730,361

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02085170
B01442590
C01446010
D02151310

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0970
B0970
C0970
D0970

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013360
B013380
C013360
D013380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6543519833.030488%
B6547415502.367352%
C6548711971.827844%
D65377701810.734662%

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 75340 65603 0 0 0.00% 0.00%
B 75340 65600 0 0 0.00% 0.00%
C 75340 65598 0 0 0.00% 0.00%
D 75340 65204 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 15 236 2894 8.8 906 844 232.9
A 7 110 2834 8.54 906 844 232.9
A 0 29 2715 8.03 906 844 232.9
B 2 9 3111 12.62 900 855 178.8
B 2 8 2516 9.29 900 855 178.8
B 3 17 2460 8.98 900 855 178.8
C 3 203 2816 7.9 942 877 245.3
C 3 202 2814 7.9 942 877 245.3
C 1 81 2632 7.15 942 877 245.3
D 10 189 2149 6.14 823 750 228.0
D 12 6 2070 5.79 823 750 228.0
D 15 63 2031 5.62 823 750 228.0

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