ASTROSAT CZTI

Data Quality Report

Orbit 06443

Creation date: 2024-06-27T15:07:18.042741
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_191T01_9000000854_06443cztM0_level2.evt modeM0/AS1A02_191T01_9000000854_06443cztM0_level2_quad_clean.evt
Size (bytes)398,808,00082,301,760
Size380.3 MB 78.5 MB
Events in quadrant A2,773,432520,508
Events in quadrant B2,940,701535,183
Events in quadrant C2,675,149513,766
Events in quadrant D3,267,665490,921

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125492
B0128411
C0125281
D0141041

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6185610.986257%
B6185490.792239%
C6185180.291027%
D6185821.325788%

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 7090 6186 0 0 0.00% 0.00%
B 7090 6186 5 5 0.07% 0.08%
C 7090 6186 1 1 0.01% 0.02%
D 7090 6186 43 43 0.61% 0.70%

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 16140 106.65 711 695 144.8
A 10 133 13016 85.07 711 695 144.8
A 15 236 8053 50.81 711 695 144.8
B 11 51 64670 467.48 714 697 136.8
B 15 204 31660 226.26 714 697 136.8
B 15 35 23368 165.67 714 697 136.8
C 9 16 7933 45.78 683 684 158.3
C 13 61 5298 29.14 683 684 158.3
C 9 54 2802 13.38 683 684 158.3
D 2 152 314879 1884.29 683 660 166.8
D 2 136 167001 997.5 683 660 166.8
D 2 63 92281 549.43 683 660 166.8

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