ASTROSAT CZTI

Data Quality Report

Orbit 01362

Creation date: 2024-06-27T14:11:32.949872
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/AS1G04_014T02_9000000232_01362cztM0_level2.evt modeM0/AS1G04_014T02_9000000232_01362cztM0_level2_quad_clean.evt
Size (bytes)247,011,84024,148,800
Size235.6 MB 23.0 MB
Events in quadrant A1,780,021154,487
Events in quadrant B2,251,979154,763
Events in quadrant C1,788,258155,032
Events in quadrant D1,553,562150,637

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064112
B078071
C064461
D057471

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A156510.063898%
B1565301.916933%
C156510.063898%
D156520.127796%

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 1565 1565 49 49 3.13% 3.13%
B 1565 1565 171 171 10.93% 10.93%
C 1565 1565 38 38 2.43% 2.43%
D 1565 1565 13 13 0.83% 0.83%

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 4 32 6354 52.79 461 465 111.6
A 15 127 2715 20.17 461 465 111.6
A 13 235 2311 16.55 461 465 111.6
B 8 4 214978 1806.97 501 503 118.7
B 12 52 69776 583.63 501 503 118.7
B 4 222 29767 246.55 501 503 118.7
C 15 241 49224 390.67 441 456 124.8
C 10 19 7255 54.47 441 456 124.8
C 3 111 4000 28.39 441 456 124.8
D 12 22 13010 97.96 404 413 128.6
D 9 53 12419 93.36 404 413 128.6
D 5 234 5660 40.8 404 413 128.6

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