ASTROSAT CZTI

Data Quality Report

Orbit 47436

Creation date: 2024-07-06T19:52:01.596436
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_053T01_9000006326_47436cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47436cztM0_level2_quad_clean.evt
Size (bytes)643,340,160133,672,320
Size613.5 MB 127.5 MB
Events in quadrant A9,007,980871,836
Events in quadrant B4,749,222899,280
Events in quadrant C4,174,561887,784
Events in quadrant D5,227,616800,767

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0326102
B0199771
C0184231
D0216121

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84574895.782192%
B84573784.469670%
C8458790.934027%
D84582763.263183%

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 8652 8458 137 137 1.58% 1.62%
B 8652 8458 200 200 2.31% 2.36%
C 8653 8459 14 14 0.16% 0.17%
D 8653 8459 161 161 1.86% 1.90%

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 4152737 21240.87 938 914 195.5
A 9 191 1217682 6225.03 938 914 195.5
A 3 137 11370 53.49 938 914 195.5
B 5 32 887317 4823.21 935 904 183.8
B 0 198 59000 316.12 935 904 183.8
B 4 171 27178 142.96 935 904 183.8
C 12 2 421555 1906.94 942 945 220.6
C 3 233 42688 189.25 942 945 220.6
C 12 250 18754 80.74 942 945 220.6
D 2 249 649917 2788.52 929 899 232.7
D 2 165 509642 2185.83 929 899 232.7
D 12 233 308120 1319.98 929 899 232.7

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