ASTROSAT CZTI

Data Quality Report

Orbit 33379

Creation date: 2024-06-27T20:48:11.138341
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/AS1A10_064T02_9000004788_33379cztM0_level2.evt modeM0/AS1A10_064T02_9000004788_33379cztM0_level2_quad_clean.evt
Size (bytes)452,145,60078,019,200
Size431.2 MB 74.4 MB
Events in quadrant A2,691,858509,476
Events in quadrant B3,423,943525,930
Events in quadrant C2,955,432502,094
Events in quadrant D4,275,377466,961

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110772
B0134111
C0117581
D0162511

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5103120.235156%
B51032945.761317%
C5103490.960219%
D51032424.742308%

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 7136 5104 8 8 0.11% 0.16%
B 7136 5104 197 197 2.76% 3.86%
C 7136 5104 40 40 0.56% 0.78%
D 7136 5104 178 178 2.49% 3.49%

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 12 16 198602 1550.67 637 627 127.7
A 12 194 33404 256.73 637 627 127.7
A 13 254 7367 52.79 637 627 127.7
B 5 172 673788 5750.46 621 608 117.1
B 0 219 267554 2280.32 621 608 117.1
B 5 200 18844 155.78 621 608 117.1
C 15 214 221452 1575.68 614 620 140.1
C 15 208 128461 912.17 614 620 140.1
C 0 10 82207 582.14 614 620 140.1
D 8 195 613944 4163.52 605 589 147.3
D 2 250 382364 2591.53 605 589 147.3
D 1 52 375333 2543.8 605 589 147.3

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