ASTROSAT CZTI

Data Quality Report

Orbit 10073

Creation date: 2024-06-27T15:54:46.978965
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/AS1G07_039T01_9000001444_10073cztM0_level2.evt modeM0/AS1G07_039T01_9000001444_10073cztM0_level2_quad_clean.evt
Size (bytes)452,975,04096,120,000
Size432.0 MB 91.7 MB
Events in quadrant A2,996,831640,021
Events in quadrant B3,161,774643,071
Events in quadrant C2,787,547625,059
Events in quadrant D4,369,780588,698

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126722
B0132621
C0122181
D0169531

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5930831.399663%
B5930911.534570%
C5930631.062395%
D59301662.799325%

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 7205 5930 0 0 0.00% 0.00%
B 7205 5930 7 7 0.10% 0.12%
C 7205 5930 0 0 0.00% 0.00%
D 7205 5930 106 106 1.47% 1.79%

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 8 15 109847 717.49 749 737 152.1
A 0 226 7137 42.09 749 737 152.1
A 12 194 6462 37.65 749 737 152.1
B 0 214 72554 507.75 746 731 141.5
B 4 81 61044 426.38 746 731 141.5
B 0 218 32530 224.8 746 731 141.5
C 14 67 5638 29.82 712 716 165.0
C 13 61 5459 28.74 712 716 165.0
C 4 175 3083 14.34 712 716 165.0
D 2 16 805404 4236.35 707 693 190.0
D 8 195 263135 1381.61 707 693 190.0
D 2 152 140038 733.57 707 693 190.0

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