ASTROSAT CZTI

Data Quality Report

Orbit 04953

Creation date: 2024-06-27T14:49:17.098496
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/AS1G05_157T01_9000000626_04953cztM0_level2.evt modeM0/AS1G05_157T01_9000000626_04953cztM0_level2_quad_clean.evt
Size (bytes)599,063,04083,419,200
Size571.3 MB 79.6 MB
Events in quadrant A5,883,610456,826
Events in quadrant B3,639,342539,419
Events in quadrant C3,050,274543,760
Events in quadrant D5,099,450502,581

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0222692
B0155281
C0142651
D0199331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6933110115.880571%
B69331371.976057%
C6933110.158661%
D69333625.221405%

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 7513 6934 1041 1041 13.86% 15.01%
B 7513 6934 92 92 1.22% 1.33%
C 7513 6934 0 0 0.00% 0.00%
D 7513 6934 312 312 4.15% 4.50%

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 0 31 2645304 18230.53 716 701 145.1
A 0 50 236942 1628.52 716 701 145.1
A 4 2 199511 1370.49 716 701 145.1
B 10 16 398853 2583.23 800 781 154.1
B 15 204 58896 377.13 800 781 154.1
B 8 3 18811 117.0 800 781 154.1
C 14 67 40867 224.75 768 771 178.4
C 12 4 10462 54.32 768 771 178.4
C 13 61 6324 31.13 768 771 178.4
D 2 33 796768 4313.82 752 731 184.5
D 1 7 380404 2057.49 752 731 184.5
D 13 235 371378 2008.58 752 731 184.5

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