ASTROSAT CZTI

Data Quality Report

Orbit 10205

Creation date: 2024-06-27T15:56:19.278916
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/AS1A03_050T01_9000001468_10205cztM0_level2.evt modeM0/AS1A03_050T01_9000001468_10205cztM0_level2_quad_clean.evt
Size (bytes)435,398,400101,237,760
Size415.2 MB 96.5 MB
Events in quadrant A3,155,108663,799
Events in quadrant B2,993,572677,963
Events in quadrant C2,612,120676,425
Events in quadrant D4,030,400641,763

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132042
B0125911
C0118751
D0158821

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58102454.216867%
B5810741.273666%
C5810350.602410%
D58101232.117040%

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 7039 5809 147 147 2.09% 2.53%
B 7040 5811 3 3 0.04% 0.05%
C 7040 5811 0 0 0.00% 0.00%
D 7040 5811 74 74 1.05% 1.27%

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 15 223 351641 2518.33 683 669 139.4
A 15 239 72794 517.52 683 669 139.4
A 8 15 57770 409.72 683 669 139.4
B 11 51 125693 973.64 692 676 128.4
B 0 214 64467 496.81 692 676 128.4
B 4 239 44439 340.83 692 676 128.4
C 0 207 6454 38.25 664 669 151.2
C 14 67 6388 37.81 664 669 151.2
C 4 175 6305 37.26 664 669 151.2
D 2 16 397298 2536.99 662 644 156.3
D 1 52 364104 2324.68 662 644 156.3
D 8 195 261494 1668.39 662 644 156.3

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