ASTROSAT CZTI

Data Quality Report

Orbit 10814

Creation date: 2024-06-27T16:04:46.340751
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/AS1G07_053T01_9000001566_10814cztM0_level2.evt modeM0/AS1G07_053T01_9000001566_10814cztM0_level2_quad_clean.evt
Size (bytes)630,037,44080,455,680
Size600.9 MB 76.7 MB
Events in quadrant A7,436,333437,801
Events in quadrant B4,764,492531,720
Events in quadrant C2,757,889540,350
Events in quadrant D3,710,899501,721

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263042
B0182561
C0125721
D0152181

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6076188230.974325%
B60764607.570770%
C6076210.345622%
D60761602.633311%

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 7111 6076 1236 1236 17.38% 20.34%
B 7111 6077 286 286 4.02% 4.71%
C 7111 6077 7 7 0.10% 0.12%
D 7111 6077 137 137 1.93% 2.25%

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 8 5 4914769 40426.41 592 580 121.6
A 4 2 185383 1520.28 592 580 121.6
A 15 174 17156 136.36 592 580 121.6
B 4 239 1260863 9363.39 707 694 134.6
B 0 85 308712 2288.66 707 694 134.6
B 0 219 181328 1342.16 707 694 134.6
C 14 234 43756 268.01 691 695 160.7
C 0 207 18333 109.78 691 695 160.7
C 13 61 5144 27.69 691 695 160.7
D 10 199 271845 1632.65 678 660 166.1
D 1 52 169861 1018.66 678 660 166.1
D 13 138 99429 594.63 678 660 166.1

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