ASTROSAT CZTI

Data Quality Report

Orbit 03604

Creation date: 2024-06-27T14:31:30.617081
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_246T04_9000000472_03604cztM0_level2.evt modeM0/AS1G05_246T04_9000000472_03604cztM0_level2_quad_clean.evt
Size (bytes)408,755,52084,404,160
Size389.8 MB 80.5 MB
Events in quadrant A2,803,346544,869
Events in quadrant B3,499,163541,188
Events in quadrant C2,888,144533,777
Events in quadrant D2,785,960522,568

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123002
B0144271
C0124531
D0124861

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5913861.454422%
B5913871.471334%
C5913911.538982%
D5913861.454422%

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 7178 5914 5 5 0.07% 0.08%
B 7178 5914 11 11 0.15% 0.19%
C 7178 5914 8 8 0.11% 0.14%
D 7178 5914 8 8 0.11% 0.14%

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 34767 234.72 709 694 145.2
A 13 164 14414 94.51 709 694 145.2
A 8 15 12832 83.61 709 694 145.2
B 15 204 567816 4207.88 712 693 134.8
B 0 182 56318 412.72 712 693 134.8
B 4 200 49037 358.7 712 693 134.8
C 9 247 99613 618.6 690 695 159.9
C 2 53 79354 491.91 690 695 159.9
C 13 61 5813 32.01 690 695 159.9
D 13 223 55208 331.43 693 674 164.5
D 10 172 33319 198.4 693 674 164.5
D 13 239 28173 167.12 693 674 164.5

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