ASTROSAT CZTI

Data Quality Report

Orbit 10150

Creation date: 2024-06-27T15:55:39.317926
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_039T01_9000001462_10150cztM0_level2.evt modeM0/AS1A03_039T01_9000001462_10150cztM0_level2_quad_clean.evt
Size (bytes)548,599,68060,137,280
Size523.2 MB 57.4 MB
Events in quadrant A2,393,503394,964
Events in quadrant B2,491,693399,608
Events in quadrant C2,237,770401,359
Events in quadrant D9,152,390274,016

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01022
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01043314
B0107083
C0101803
D03060945

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4990210.420842%
B4995531.061061%
C4995220.440440%
D4990283056.713427%

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 5326 4998 4 4 0.08% 0.08%
B 5326 4998 9 9 0.17% 0.18%
C 5326 4998 0 0 0.00% 0.00%
D 5325 4994 2654 2654 49.84% 53.14%

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 86736 715.0 586 572 120.5
A 15 223 29843 242.89 586 572 120.5
A 15 239 7328 56.06 586 572 120.5
B 4 239 79371 699.95 587 569 112.6
B 0 219 70998 625.58 587 569 112.6
B 0 214 16849 144.61 587 569 112.6
C 8 128 6275 43.13 569 571 132.3
C 13 61 4359 28.64 569 571 132.3
C 8 112 3757 24.09 569 571 132.3
D 1 52 6931589 64095.86 441 426 108.1
D 8 195 331201 3058.84 441 426 108.1
D 2 136 69108 635.14 441 426 108.1

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