ASTROSAT CZTI

Data Quality Report

Orbit 40082

Creation date: 2024-06-27T22:12:07.701094
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_086T01_9000005518_40082cztM0_level2.fits modeM0/AS1T05_086T01_9000005518_40082cztM0_level2_quad_clean.evt
Size (bytes)417,067,20093,715,200
Size397.7 MB 89.4 MB
Events in quadrant A2,844,569662,750
Events in quadrant B2,528,050689,668
Events in quadrant C5,974,860547,056
Events in quadrant D3,687,623574,905

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116792
B0108771
C0212891
D0145691

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5188280.539707%
B518890.173477%
C518897218.735544%
D51881833.527371%

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 7101 5189 18 18 0.25% 0.35%
B 7101 5189 5 5 0.07% 0.10%
C 7101 5189 861 861 12.13% 16.59%
D 7101 5189 165 165 2.32% 3.18%

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 441768 3653.84 587 579 120.7
A 13 248 65499 537.66 587 579 120.7
A 15 223 35273 287.33 587 579 120.7
B 0 189 150161 1299.38 594 579 115.1
B 0 230 24788 210.3 594 579 115.1
B 4 200 21541 182.09 594 579 115.1
C 9 187 3493983 27287.51 540 547 128.0
C 15 214 202772 1579.6 540 547 128.0
C 0 10 135386 1053.24 540 547 128.0
D 12 227 649176 4622.23 565 550 140.3
D 1 47 336392 2393.27 565 550 140.3
D 2 250 212831 1512.75 565 550 140.3

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