ASTROSAT CZTI

Data Quality Report

Orbit 45750

Creation date: 2024-06-27T23:15:44.794973
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/AS1T05_183T01_9000006124_45750cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45750cztM0_level2_quad_clean.evt
Size (bytes)543,121,92097,871,040
Size518.0 MB 93.3 MB
Events in quadrant A5,456,011681,129
Events in quadrant B6,417,002581,487
Events in quadrant C3,049,856691,860
Events in quadrant D4,735,035606,073

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197681
B0230781
C0128331
D0178601

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57612394.148585%
B5762129122.405415%
C57621262.186741%
D57624397.618882%

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 6941 5762 12 12 0.17% 0.21%
B 6942 5763 847 847 12.20% 14.70%
C 6942 5763 39 39 0.56% 0.68%
D 6942 5763 304 304 4.38% 5.28%

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 2636948 18063.34 704 691 145.9
A 14 235 44352 299.16 704 691 145.9
A 0 243 19991 132.24 704 691 145.9
B 3 112 2899563 23209.57 640 622 124.9
B 5 172 697865 5582.28 640 622 124.9
B 5 32 71422 566.84 640 622 124.9
C 14 254 267092 1656.84 688 693 160.8
C 12 2 50383 309.04 688 693 160.8
C 14 96 35022 213.51 688 693 160.8
D 1 52 1144277 6694.93 681 661 170.8
D 13 249 343401 2006.46 681 661 170.8
D 5 171 192281 1121.78 681 661 170.8

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