ASTROSAT CZTI

Data Quality Report

Orbit 07807

Creation date: 2024-06-27T15:24:16.476939
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/AS1G06_032T01_9000001074_07807cztM0_level2.evt modeM0/AS1G06_032T01_9000001074_07807cztM0_level2_quad_clean.evt
Size (bytes)254,882,88048,421,440
Size243.1 MB 46.2 MB
Events in quadrant A1,741,156297,358
Events in quadrant B1,989,379304,232
Events in quadrant C1,718,250298,296
Events in quadrant D1,999,705286,841

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081132
B085401
C081341
D088351

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3953651.644321%
B3953771.947888%
C3953230.581837%
D3954501.264542%

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 3953 3953 0 0 0.00% 0.00%
B 3953 3953 1 1 0.03% 0.03%
C 3953 3953 0 0 0.00% 0.00%
D 3954 3954 11 11 0.28% 0.28%

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 13 14 7045 70.81 449 438 93.3
A 3 1 6171 61.44 449 438 93.3
A 0 226 4396 42.42 449 438 93.3
B 11 51 98411 1112.02 451 441 88.1
B 0 219 29771 332.91 451 441 88.1
B 0 214 28470 318.15 451 441 88.1
C 8 128 8535 79.27 434 435 102.2
C 8 112 4575 40.52 434 435 102.2
C 12 4 4092 35.79 434 435 102.2
D 2 152 202860 1868.72 436 421 108.3
D 7 55 50523 462.49 436 421 108.3
D 13 104 49503 453.08 436 421 108.3

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