ASTROSAT CZTI

Data Quality Report

Orbit 22133

Creation date: 2024-06-27T18:37:15.356835
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/AS1T03_145T01_9000003278_22133cztM0_level2.evt modeM0/AS1T03_145T01_9000003278_22133cztM0_level2_quad_clean.evt
Size (bytes)485,712,00096,189,120
Size463.2 MB 91.7 MB
Events in quadrant A3,348,708629,629
Events in quadrant B3,665,734635,313
Events in quadrant C3,373,566606,951
Events in quadrant D3,888,049595,491

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138182
B0148062
C0140562
D0155992

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63941111.736003%
B63932033.175348%
C63931712.674801%
D63931832.862506%

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 7589 6396 1 1 0.01% 0.02%
B 7588 6395 65 65 0.86% 1.02%
C 7588 6395 0 0 0.00% 0.00%
D 7588 6395 81 81 1.07% 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 5 16 17651 98.46 862 847 170.7
A 13 254 11497 62.4 862 847 170.7
A 4 2 10589 57.08 862 847 170.7
B 3 64 234538 1464.32 849 830 159.6
B 0 230 50206 309.37 849 830 159.6
B 11 51 23357 141.14 849 830 159.6
C 14 238 130424 689.6 818 825 187.9
C 10 22 47016 245.78 818 825 187.9
C 0 10 6392 29.62 818 825 187.9
D 1 52 368288 1835.24 834 810 200.2
D 11 176 229634 1142.78 834 810 200.2
D 2 133 56723 279.24 834 810 200.2

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