ASTROSAT CZTI

Data Quality Report

Orbit 42153

Creation date: 2024-06-27T22:37:34.315578
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/AS1C07_001T11_9000005760_42153cztM0_level2.fits modeM0/AS1C07_001T11_9000005760_42153cztM0_level2_quad_clean.evt
Size (bytes)316,670,40088,272,000
Size302.0 MB 84.2 MB
Events in quadrant A3,198,880589,639
Events in quadrant B2,628,407594,870
Events in quadrant C2,410,073586,778
Events in quadrant D3,078,616536,420

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129602
B0115192
C0105442
D0129102

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5211440.844368%
B5211661.266552%
C521120.038380%
D52111102.110919%

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 7063 5212 21 21 0.30% 0.40%
B 7063 5212 40 40 0.57% 0.77%
C 7063 5212 0 0 0.00% 0.00%
D 7063 5212 99 99 1.40% 1.90%

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 10 83 612892 5320.2 560 548 115.1
A 15 223 192729 1669.72 560 548 115.1
A 12 189 154205 1335.01 560 548 115.1
B 4 171 180011 1718.41 558 543 104.4
B 15 35 107496 1024.08 558 543 104.4
B 5 255 46751 442.44 558 543 104.4
C 15 214 219866 1700.07 556 560 129.0
C 15 159 11997 88.66 556 560 129.0
C 3 233 4058 27.12 556 560 129.0
D 6 252 315819 2360.45 552 536 133.6
D 13 249 138996 1036.62 552 536 133.6
D 1 47 127290 948.98 552 536 133.6

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