ASTROSAT CZTI

Data Quality Report

Orbit 38056

Creation date: 2024-06-27T21:47:52.600743
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/AS1A11_044T01_9000005360_38056cztM0_level2.fits modeM0/AS1A11_044T01_9000005360_38056cztM0_level2_quad_clean.evt
Size (bytes)408,928,32098,334,720
Size390.0 MB 93.8 MB
Events in quadrant A2,806,102684,586
Events in quadrant B2,729,733716,661
Events in quadrant C5,031,577603,701
Events in quadrant D4,162,183605,708

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113593
B0113542
C0183262
D0156562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5238160.305460%
B5238370.706376%
C523881715.597556%
D52383256.204658%

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 7300 5239 5 5 0.07% 0.10%
B 7300 5239 23 23 0.32% 0.44%
C 7300 5239 721 721 9.88% 13.76%
D 7300 5239 318 318 4.36% 6.07%

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 350510 2794.39 627 615 125.2
A 13 6 11587 87.62 627 615 125.2
A 12 189 7767 57.11 627 615 125.2
B 5 172 83302 704.68 632 616 117.3
B 4 171 51579 434.32 632 616 117.3
B 0 229 33479 280.07 632 616 117.3
C 1 23 2423075 18130.16 583 589 133.6
C 15 214 202459 1510.82 583 589 133.6
C 3 233 113345 843.88 583 589 133.6
D 12 227 1155753 7905.67 615 600 146.1
D 13 249 288871 1972.88 615 600 146.1
D 10 199 128390 874.57 615 600 146.1

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