ASTROSAT CZTI

Data Quality Report

Orbit 43422

Creation date: 2024-06-27T22:51:48.016699
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_018T01_9000005874_43422cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43422cztM0_level2_quad_clean.evt
Size (bytes)366,750,72094,985,280
Size349.8 MB 90.6 MB
Events in quadrant A3,505,379634,535
Events in quadrant B2,813,133656,468
Events in quadrant C2,758,489611,995
Events in quadrant D4,039,322560,195

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137942
B0124272
C0119822
D0161972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59061292.184219%
B5907190.321652%
C590740.067716%
D59071091.845268%

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 7218 5907 97 97 1.34% 1.64%
B 7219 5908 15 15 0.21% 0.25%
C 7219 5908 0 0 0.00% 0.00%
D 7219 5908 118 118 1.63% 2.00%

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 621689 4805.78 629 617 129.2
A 15 237 412873 3189.99 629 617 129.2
A 2 79 28917 218.98 629 617 129.2
B 5 255 113490 928.31 632 615 121.6
B 0 189 87473 714.34 632 615 121.6
B 0 186 38851 314.46 632 615 121.6
C 15 214 243628 1683.01 614 615 144.4
C 3 233 93342 642.19 614 615 144.4
C 2 16 14270 94.57 614 615 144.4
D 2 16 952453 6330.15 611 590 150.4
D 1 52 312804 2076.31 611 590 150.4
D 13 249 92199 609.23 611 590 150.4

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