ASTROSAT CZTI

Data Quality Report

Orbit 48086

Creation date: 2024-08-19T11:44:52.014873
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/AS1A13_071T07_9000006398_48086cztM0_level2.fits modeM0/AS1A13_071T07_9000006398_48086cztM0_level2_quad_clean.evt
Size (bytes)389,761,92080,818,560
Size371.7 MB 77.1 MB
Events in quadrant A6,819,586673,010
Events in quadrant B1,119,571110
Events in quadrant C2,795,920689,586
Events in quadrant D3,179,274630,248

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245072
B069482
C0134143
D0143982

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65043315.089176%
B6504650399.984625%
C6503260.399815%
D6503380.584346%

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 7514 6506 128 128 1.70% 1.97%
B 7513 6503 1 1 0.01% 0.02%
C 7513 6505 13 13 0.17% 0.20%
D 7513 6505 20 20 0.27% 0.31%

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 4061280 28397.22 687 672 143.0
A 14 248 64738 448.04 687 672 143.0
A 13 248 18845 127.09 687 672 143.0
B 2 177 898123 80641.53 44 43 11.1
B 4 21 34363 3081.7 44 43 11.1
B 5 255 3621 321.28 44 43 11.1
C 14 254 54287 334.45 686 689 160.3
C 15 208 23242 140.73 686 689 160.3
C 6 247 14598 86.79 686 689 160.3
D 2 249 375879 2206.68 680 661 170.0
D 14 34 69057 402.24 680 661 170.0
D 2 234 33255 191.69 680 661 170.0

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