ASTROSAT CZTI

Data Quality Report

Orbit 38152

Creation date: 2024-06-27T21:49:04.027843
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/AS1A07_145T01_9000005370_38152cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38152cztM0_level2_quad_clean.evt
Size (bytes)330,842,88093,159,360
Size315.5 MB 88.8 MB
Events in quadrant A2,811,121626,208
Events in quadrant B2,569,312634,980
Events in quadrant C2,643,445610,102
Events in quadrant D3,788,948559,706

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117762
B0114271
C0112841
D0149981

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5569110.197522%
B5569110.197522%
C556970.125696%
D55691122.011133%

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 7091 5570 6 6 0.08% 0.11%
B 7091 5570 3 3 0.04% 0.05%
C 7091 5570 4 4 0.06% 0.07%
D 7091 5570 86 86 1.21% 1.54%

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 343458 2700.82 619 606 126.9
A 10 248 19811 151.29 619 606 126.9
A 12 189 18828 143.54 619 606 126.9
B 4 171 87169 714.27 617 599 121.2
B 5 172 17451 139.04 617 599 121.2
B 12 111 14956 118.46 617 599 121.2
C 15 214 232364 1634.85 606 611 141.8
C 14 254 15613 105.83 606 611 141.8
C 10 20 11239 74.97 606 611 141.8
D 12 235 701623 4803.5 603 587 145.9
D 13 171 348634 2384.82 603 587 145.9
D 1 52 113250 771.97 603 587 145.9

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