ASTROSAT CZTI

Data Quality Report

Orbit 47358

Creation date: 2024-07-01T03:34:58.281253
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_093T17_9000006322_47358cztM0_level2.fits modeM0/AS1A13_093T17_9000006322_47358cztM0_level2_quad_clean.evt
Size (bytes)516,084,480108,527,040
Size492.2 MB 103.5 MB
Events in quadrant A7,312,575695,055
Events in quadrant B4,179,882728,231
Events in quadrant C3,661,123740,769
Events in quadrant D3,451,697673,319

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257992
B0167012
C0153812
D0148442

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A642765210.144702%
B64274767.406255%
C6427430.669052%
D64271201.867123%

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 7647 6428 296 296 3.87% 4.60%
B 7647 6428 253 253 3.31% 3.94%
C 7647 6428 15 15 0.20% 0.23%
D 7647 6428 62 62 0.81% 0.96%

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 3684176 23952.06 744 729 153.8
A 15 235 478746 3108.36 744 729 153.8
A 9 191 245788 1593.53 744 729 153.8
B 0 186 1024394 6955.45 745 724 147.2
B 0 190 79161 532.95 745 724 147.2
B 0 198 45017 300.95 745 724 147.2
C 0 207 666173 3750.1 754 758 177.4
C 12 2 34801 191.86 754 758 177.4
C 3 233 15322 82.08 754 758 177.4
D 12 233 171701 904.0 750 727 189.1
D 2 249 115763 608.24 750 727 189.1
D 8 176 98059 514.63 750 727 189.1

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