ASTROSAT CZTI

Data Quality Report

Orbit 05028

Creation date: 2024-06-27T14:50:23.425704
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_250T02_9000000638_05028cztM0_level2.evt modeM0/AS1G05_250T02_9000000638_05028cztM0_level2_quad_clean.evt
Size (bytes)504,751,68087,442,560
Size481.4 MB 83.4 MB
Events in quadrant A3,365,880539,859
Events in quadrant B3,531,187541,781
Events in quadrant C3,195,859542,808
Events in quadrant D4,697,087514,758

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150982
B0155101
C0148511
D0190625

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7317320.437338%
B7317470.642340%
C7317200.273336%
D73162453.348824%

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 7662 7318 12 12 0.16% 0.16%
B 7662 7318 0 0 0.00% 0.00%
C 7662 7318 0 0 0.00% 0.00%
D 7662 7318 126 126 1.64% 1.72%

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 13 251 84509 487.85 834 814 171.6
A 15 174 45962 263.16 834 814 171.6
A 0 50 24879 140.27 834 814 171.6
B 15 204 73759 446.86 845 825 163.2
B 8 3 53724 324.11 845 825 163.2
B 15 54 39913 239.49 845 825 163.2
C 9 54 18959 95.58 814 814 189.8
C 13 61 6590 30.42 814 814 189.8
C 3 202 2025 6.38 814 814 189.8
D 12 227 546626 2749.88 804 780 198.5
D 13 235 346063 1739.48 804 780 198.5
D 1 7 325968 1638.24 804 780 198.5

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter