ASTROSAT CZTI

Data Quality Report

Orbit 42434

Creation date: 2024-06-27T22:40:08.792333
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/AS1C07_001T10_9000005806_42434cztM0_level2.fits modeM0/AS1C07_001T10_9000005806_42434cztM0_level2_quad_clean.evt
Size (bytes)387,630,72079,200,000
Size369.7 MB 75.5 MB
Events in quadrant A2,723,098567,707
Events in quadrant B5,732,982403,911
Events in quadrant C2,406,482551,066
Events in quadrant D3,083,810513,599

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011474150
B021155303
C01074999
D012817124

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5164120.232378%
B5158156930.418767%
C5164180.348567%
D51601092.112403%

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 7049 5180 4 4 0.06% 0.08%
B 7049 5174 1275 1275 18.09% 24.64%
C 7049 5176 7 7 0.10% 0.14%
D 7049 5179 93 93 1.32% 1.80%

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 570765 5140.1 540 529 110.9
A 14 223 23997 211.54 540 529 110.9
A 13 6 16599 144.85 540 529 110.9
B 0 186 3668551 42166.42 450 438 87.0
B 5 255 207957 2385.51 450 438 87.0
B 3 112 32189 364.99 450 438 87.0
C 15 214 214912 1733.87 530 533 123.6
C 12 249 54252 434.47 530 533 123.6
C 7 220 26865 212.97 530 533 123.6
D 12 33 506006 3866.44 530 514 130.7
D 1 52 120867 920.56 530 514 130.7
D 12 6 104176 792.9 530 514 130.7

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