ASTROSAT CZTI

Data Quality Report

Orbit 07205

Creation date: 2024-06-27T15:16:54.155548
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/AS1G06_083T01_9000000984_07205cztM0_level2.evt modeM0/AS1G06_083T01_9000000984_07205cztM0_level2_quad_clean.evt
Size (bytes)465,972,480108,504,000
Size444.4 MB 103.5 MB
Events in quadrant A3,100,037732,284
Events in quadrant B3,276,176737,381
Events in quadrant C2,878,141708,488
Events in quadrant D4,425,615664,279

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137042
B0139851
C0130051
D0172051

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6362480.754480%
B6362651.021691%
C6362260.408677%
D63623184.998428%

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 7507 6362 3 3 0.04% 0.05%
B 7507 6362 1 1 0.01% 0.02%
C 7507 6362 0 0 0.00% 0.00%
D 7507 6362 215 215 2.86% 3.38%

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 13 248 42195 268.7 768 754 154.2
A 14 14 39115 248.73 768 754 154.2
A 14 31 20555 128.39 768 754 154.2
B 0 219 114601 780.7 773 757 145.8
B 0 214 83080 564.54 773 757 145.8
B 4 81 28654 191.31 773 757 145.8
C 13 61 5674 28.99 737 740 170.2
C 8 222 2298 9.15 737 740 170.2
C 1 0 2149 8.28 737 740 170.2
D 2 216 754020 4282.27 717 696 175.9
D 8 195 620805 3525.01 717 696 175.9
D 14 34 152392 862.32 717 696 175.9

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