ASTROSAT CZTI

Data Quality Report

Orbit 47853

Creation date: 2024-08-04T13:26:34.734488
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/AS1A13_073T04_9000006358_47853cztM0_level2.fits modeM0/AS1A13_073T04_9000006358_47853cztM0_level2_quad_clean.evt
Size (bytes)326,183,04072,486,720
Size311.1 MB 69.1 MB
Events in quadrant A4,147,382476,822
Events in quadrant B2,028,493515,942
Events in quadrant C1,947,716479,265
Events in quadrant D3,604,641409,982

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0192443895
B0109301756
C0109571730
D0158601960

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0121
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010412
B010917
C01049
D010814

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4356751.721763%
B4468190.425246%
C448030.066964%
D44613327.442278%

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 6904 4429 10 10 0.14% 0.23%
B 6904 4571 0 0 0.00% 0.00%
C 6905 4578 2 2 0.03% 0.04%
D 6905 4560 274 274 3.97% 6.01%

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 2262545 22243.78 485 475 101.7
A 7 3 11967 113.0 485 475 101.7
A 3 137 5600 50.39 485 475 101.7
B 0 198 22325 221.6 498 483 98.6
B 4 21 12519 122.11 498 483 98.6
B 12 111 12281 119.7 498 483 98.6
C 14 254 29474 254.11 484 485 114.1
C 12 250 18472 157.67 484 485 114.1
C 12 2 6426 52.08 484 485 114.1
D 12 2 771106 6413.42 471 454 120.2
D 2 165 599230 4983.06 471 454 120.2
D 2 249 157880 1310.11 471 454 120.2

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