ASTROSAT CZTI

Data Quality Report

Orbit 44966

Creation date: 2024-06-27T23:08:27.889478
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_017T02_9000006032_44966cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44966cztM0_level2_quad_clean.evt
Size (bytes)295,338,24065,911,680
Size281.7 MB 62.9 MB
Events in quadrant A3,021,304449,329
Events in quadrant B2,253,467456,102
Events in quadrant C1,915,836439,496
Events in quadrant D3,448,683384,831

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114200
B090350
C080660
D0128570

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A376440.106270%
B3764501.328374%
C3764130.345377%
D37652266.002656%

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 3764 3764 1 1 0.03% 0.03%
B 3764 3764 30 30 0.80% 0.80%
C 3764 3764 15 15 0.40% 0.40%
D 3765 3765 192 192 5.10% 5.10%

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 1282415 13814.94 445 436 92.8
A 0 243 6726 67.78 445 436 92.8
A 3 137 4672 45.65 445 436 92.8
B 0 168 110647 1292.03 438 425 85.3
B 4 171 99322 1159.28 438 425 85.3
B 3 112 81036 944.93 438 425 85.3
C 12 250 75097 722.22 436 441 103.4
C 14 254 64110 615.93 436 441 103.4
C 12 2 27771 264.39 436 441 103.4
D 12 33 321068 2957.6 429 417 108.4
D 13 174 300888 2771.47 429 417 108.4
D 12 233 224626 2068.05 429 417 108.4

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