ASTROSAT CZTI

Data Quality Report

Orbit 46392

Creation date: 2024-06-27T23:22:38.239673
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_070T04_9000006204_46392cztM0_level2.fits modeM0/AS1A13_070T04_9000006204_46392cztM0_level2_quad_clean.evt
Size (bytes)552,942,720122,601,600
Size527.3 MB 116.9 MB
Events in quadrant A6,916,312821,243
Events in quadrant B3,744,778844,290
Events in quadrant C4,375,241788,219
Events in quadrant D4,839,470726,652

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257883
B0165430
C0185550
D0198110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7643750.981290%
B7643440.575690%
C76442503.270539%
D76442232.917321%

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 7643 7643 6 6 0.08% 0.08%
B 7643 7643 10 10 0.13% 0.13%
C 7644 7644 198 198 2.59% 2.59%
D 7644 7644 143 143 1.87% 1.87%

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 10 83 3535339 20109.77 842 824 175.8
A 15 14 30233 167.32 842 824 175.8
A 13 248 24787 136.34 842 824 175.8
B 5 32 133718 800.52 841 814 166.0
B 5 172 64573 384.04 841 814 166.0
B 0 155 57135 339.24 841 814 166.0
C 14 254 1056732 5453.48 822 825 193.6
C 12 2 58942 300.16 822 825 193.6
C 0 207 13563 65.79 822 825 193.6
D 1 52 624260 3006.45 823 797 207.4
D 11 224 358799 1726.35 823 797 207.4
D 2 120 231218 1111.13 823 797 207.4

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