ASTROSAT CZTI

Data Quality Report

Orbit 38133

Creation date: 2024-06-27T21:48:50.571708
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/AS1C07_001T12_9000005366_38133cztM0_level2.fits modeM0/AS1C07_001T12_9000005366_38133cztM0_level2_quad_clean.evt
Size (bytes)340,200,00094,711,680
Size324.4 MB 90.3 MB
Events in quadrant A3,244,641644,464
Events in quadrant B2,588,614655,014
Events in quadrant C3,105,684606,143
Events in quadrant D3,213,311565,633

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131553
B0116262
C0127852
D0135322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5660120.212014%
B5660180.318021%
C56601402.473498%
D5660781.378092%

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 7123 5661 2 2 0.03% 0.04%
B 7123 5661 5 5 0.07% 0.09%
C 7123 5661 132 132 1.85% 2.33%
D 7123 5661 68 68 0.95% 1.20%

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 388489 3081.44 623 610 125.9
A 12 16 353570 2804.03 623 610 125.9
A 12 194 57962 455.62 623 610 125.9
B 0 229 45586 378.48 617 600 118.9
B 5 172 45167 374.95 617 600 118.9
B 4 171 33798 279.3 617 600 118.9
C 0 239 399091 2894.1 593 595 137.7
C 15 214 238130 1725.11 593 595 137.7
C 14 254 71980 518.44 593 595 137.7
D 1 52 270840 1861.26 600 582 145.2
D 12 227 165121 1133.17 600 582 145.2
D 13 249 132609 909.27 600 582 145.2

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