ASTROSAT CZTI

Data Quality Report

Orbit 41302

Creation date: 2024-06-27T22:27:14.702912
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/AS1T05_106T01_9000005642_41302cztM0_level2.fits modeM0/AS1T05_106T01_9000005642_41302cztM0_level2_quad_clean.evt
Size (bytes)381,432,96081,587,520
Size363.8 MB 77.8 MB
Events in quadrant A3,468,916547,599
Events in quadrant B2,353,752598,546
Events in quadrant C2,986,297539,411
Events in quadrant D4,932,177444,083

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132753
B0101972
C0116752
D0179702

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48552765.684861%
B4855100.205973%
C48552765.684861%
D485582617.013388%

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 7007 4856 249 249 3.55% 5.13%
B 7007 4856 2 2 0.03% 0.04%
C 7007 4856 258 258 3.68% 5.31%
D 7007 4855 848 848 12.10% 17.47%

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 13 248 816072 7428.3 538 526 109.8
A 10 83 486219 4423.88 538 526 109.8
A 12 189 75724 684.93 538 526 109.8
B 0 186 80179 757.06 550 535 105.2
B 7 202 51804 487.34 550 535 105.2
B 0 245 44184 414.91 550 535 105.2
C 0 10 733083 6072.41 520 524 120.6
C 15 214 202145 1671.3 520 524 120.6
C 10 70 15879 127.28 520 524 120.6
D 1 47 1132012 9300.38 503 489 121.7
D 2 249 791907 6504.94 503 489 121.7
D 2 120 587001 4820.74 503 489 121.7

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