ASTROSAT CZTI

Data Quality Report

Orbit 47338

Creation date: 2024-06-29T22:06:46.800650
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_093T09_9000006320_47338cztM0_level2.fits modeM0/AS1A13_093T09_9000006320_47338cztM0_level2_quad_clean.evt
Size (bytes)498,072,96082,713,600
Size475.0 MB 78.9 MB
Events in quadrant A5,753,616561,444
Events in quadrant B2,699,917584,821
Events in quadrant C2,648,595566,346
Events in quadrant D6,909,716408,540

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212071
B0116921
C0118211
D0244861

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54772825.148804%
B54771512.756984%
C54771001.825817%
D5477146026.656929%

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 5762 5479 29 29 0.50% 0.53%
B 5762 5479 9 9 0.16% 0.16%
C 5762 5479 2 2 0.03% 0.04%
D 5762 5479 1139 1139 19.77% 20.79%

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 2763537 21546.08 609 597 128.2
A 9 191 526048 4097.6 609 597 128.2
A 15 235 48549 373.94 609 597 128.2
B 5 171 47313 378.22 613 592 123.5
B 5 255 44966 359.22 613 592 123.5
B 14 167 30250 240.09 613 592 123.5
C 0 207 224099 1538.2 609 612 145.3
C 12 249 24451 164.07 609 612 145.3
C 3 233 20323 135.66 609 612 145.3
D 12 2 2439536 17676.06 537 519 138.0
D 6 112 2112197 15303.77 537 519 138.0
D 13 29 79888 575.2 537 519 138.0

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