ASTROSAT CZTI

Data Quality Report

Orbit 03529

Creation date: 2024-06-27T14:30:34.023291
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/AS1G05_045T01_9000000468_03529cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03529cztM0_level2_quad_clean.evt
Size (bytes)441,852,48081,996,480
Size421.4 MB 78.2 MB
Events in quadrant A3,070,531530,202
Events in quadrant B3,602,532522,417
Events in quadrant C2,978,757516,223
Events in quadrant D3,328,310501,401

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133402
B0146781
C0130311
D0141894

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59151722.907861%
B5913921.555894%
C59141031.741630%
D59131192.012515%

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 7052 5918 84 84 1.19% 1.42%
B 7052 5916 12 12 0.17% 0.20%
C 7052 5917 38 38 0.54% 0.64%
D 7051 5916 62 62 0.88% 1.05%

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 0 50 341491 2424.8 681 667 140.6
A 8 15 77146 544.11 681 667 140.6
A 0 31 13333 90.11 681 667 140.6
B 3 0 426381 3197.66 687 670 133.1
B 15 204 269621 2020.18 687 670 133.1
B 4 81 76665 570.82 687 670 133.1
C 4 248 309698 1989.86 663 665 155.3
C 1 16 48295 306.69 663 665 155.3
C 1 192 15850 97.78 663 665 155.3
D 1 20 555487 3477.07 662 643 159.6
D 2 31 141872 885.05 662 643 159.6
D 13 223 45669 282.17 662 643 159.6

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
Veto Counter