ASTROSAT CZTI

Data Quality Report

Orbit 45633

Creation date: 2024-06-27T23:14:24.916775
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_071T08_9000006114_45633cztM0_level2.fits modeM0/AS1A13_071T08_9000006114_45633cztM0_level2_quad_clean.evt
Size (bytes)498,349,440102,415,680
Size475.3 MB 97.7 MB
Events in quadrant A5,325,541704,890
Events in quadrant B4,305,286677,656
Events in quadrant C2,741,215698,469
Events in quadrant D5,616,150606,878

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0191821
B0165771
C0122191
D0207664

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59191843.108633%
B59195559.376584%
C5919520.878527%
D59194978.396689%

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 7104 5919 18 18 0.25% 0.30%
B 7104 5920 415 415 5.84% 7.01%
C 7104 5920 1 1 0.01% 0.02%
D 7103 5919 390 390 5.49% 6.59%

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 2497589 17360.03 705 693 143.8
A 13 248 53887 369.84 705 693 143.8
A 0 243 14300 94.6 705 693 143.8
B 3 112 853772 6600.87 669 652 129.2
B 5 172 697068 5388.4 669 652 129.2
B 0 186 27021 204.03 669 652 129.2
C 14 254 42005 256.78 685 691 160.9
C 12 2 14008 82.77 685 691 160.9
C 12 249 9925 57.39 685 691 160.9
D 11 241 1002705 6001.4 675 654 167.0
D 1 52 877028 5248.71 675 654 167.0
D 13 249 615030 3679.57 675 654 167.0

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