ASTROSAT CZTI

Data Quality Report

Orbit 48514

Creation date: 2024-09-17T04:05:23.839929
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_037T01_9000006432_48514cztM0_level2.fits modeM0/AS1A13_037T01_9000006432_48514cztM0_level2_quad_clean.evt
Size (bytes)473,109,12076,368,960
Size451.2 MB 72.8 MB
Events in quadrant A5,152,866522,987
Events in quadrant B2,431,421536,866
Events in quadrant C2,045,500522,942
Events in quadrant D7,482,884367,743

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0188181
B0112551
C0103161
D0258281

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5156561.086113%
B5157621.202249%
C515720.038782%
D5157143327.787473%

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 5156 5156 1 1 0.02% 0.02%
B 5157 5157 39 39 0.76% 0.76%
C 5157 5157 0 0 0.00% 0.00%
D 5157 5157 1490 1490 28.89% 28.89%

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 2917638 26348.11 526 515 110.7
A 12 189 185571 1671.47 526 515 110.7
A 13 254 10043 86.06 526 515 110.7
B 5 255 259499 2432.43 526 509 106.5
B 0 186 63445 591.09 526 509 106.5
B 12 111 13319 120.31 526 509 106.5
C 12 250 4701 33.78 522 523 123.7
C 13 61 3555 24.52 522 523 123.7
C 3 233 3393 23.21 522 523 123.7
D 2 165 5398707 45328.35 468 451 119.1
D 2 249 187309 1569.02 468 451 119.1
D 10 199 28516 235.66 468 451 119.1

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