ASTROSAT CZTI

Data Quality Report

Orbit 06428

Creation date: 2024-06-27T15:07:05.194938
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/AS1A02_191T02_9000000852_06428cztM0_level2.evt modeM0/AS1A02_191T02_9000000852_06428cztM0_level2_quad_clean.evt
Size (bytes)429,341,76089,956,800
Size409.5 MB 85.8 MB
Events in quadrant A2,954,625571,372
Events in quadrant B3,063,689594,432
Events in quadrant C2,863,602567,318
Events in quadrant D3,678,805538,006

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132732
B0133791
C0132311
D0153141

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6496941.447044%
B6496711.092980%
C6496390.600369%
D64961171.801108%

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 7496 6497 0 0 0.00% 0.00%
B 7496 6497 1 1 0.01% 0.02%
C 7496 6497 0 0 0.00% 0.00%
D 7496 6497 47 47 0.63% 0.72%

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 8 15 7711 45.28 761 744 153.9
A 0 226 7260 42.35 761 744 153.9
A 12 194 7242 42.23 761 744 153.9
B 15 204 31546 209.98 766 749 146.7
B 0 219 19763 129.64 766 749 146.7
B 15 35 19208 125.85 766 749 146.7
C 9 54 6707 35.13 731 734 170.0
C 13 61 5772 29.63 731 734 170.0
C 1 16 4941 24.75 731 734 170.0
D 11 241 442513 2447.68 733 709 180.5
D 2 152 398047 2201.33 733 709 180.5
D 5 97 23902 128.49 733 709 180.5

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