ASTROSAT CZTI

Data Quality Report

Orbit 38650

Creation date: 2024-06-27T21:54:37.293092
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/AS1A12_061T03_9000005390_38650cztM0_level2.fits modeM0/AS1A12_061T03_9000005390_38650cztM0_level2_quad_clean.evt
Size (bytes)363,971,52097,796,160
Size347.1 MB 93.3 MB
Events in quadrant A3,750,879638,499
Events in quadrant B2,784,732695,420
Events in quadrant C3,249,849659,385
Events in quadrant D3,282,507603,524

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144603
B0113442
C0126402
D0130302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52073105.953524%
B5207120.230459%
C52071252.400615%
D52071112.131746%

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 7299 5207 192 192 2.63% 3.69%
B 7299 5207 4 4 0.05% 0.08%
C 7299 5207 117 117 1.60% 2.25%
D 7299 5207 93 93 1.27% 1.79%

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 9 143 870518 7055.59 613 602 123.3
A 10 83 403053 3264.14 613 602 123.3
A 7 3 56955 457.06 613 602 123.3
B 5 184 235764 1986.59 628 613 118.4
B 0 155 29398 243.18 628 613 118.4
B 15 85 16848 137.16 628 613 118.4
C 14 254 577306 4002.86 622 628 144.1
C 15 214 210109 1454.06 622 628 144.1
C 0 10 16728 111.75 622 628 144.1
D 14 52 327427 2157.57 621 606 151.5
D 2 249 231283 1522.86 621 606 151.5
D 5 222 121133 795.68 621 606 151.5

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