ASTROSAT CZTI

Data Quality Report

Orbit 44303

Creation date: 2024-06-27T23:01:51.010307
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_004T13_9000005988_44303cztM0_level2.fits modeM0/AS1A13_004T13_9000005988_44303cztM0_level2_quad_clean.evt
Size (bytes)502,081,920112,135,680
Size478.8 MB 106.9 MB
Events in quadrant A5,053,612757,293
Events in quadrant B4,760,649728,365
Events in quadrant C3,209,810754,538
Events in quadrant D5,021,534670,979

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205172
B0189092
C0146192
D0197652

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69531792.574428%
B69545708.196721%
C6953490.704732%
D69534095.882353%

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 7613 6955 16 16 0.21% 0.23%
B 7614 6956 350 350 4.60% 5.03%
C 7613 6955 12 12 0.16% 0.17%
D 7613 6955 298 298 3.91% 4.28%

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 1815615 11094.94 787 769 163.6
A 7 3 81769 495.18 787 769 163.6
A 15 223 45044 270.67 787 769 163.6
B 5 172 999794 6692.98 761 738 149.3
B 0 219 233267 1557.78 761 738 149.3
B 4 158 166781 1112.37 761 738 149.3
C 14 254 118539 641.88 778 782 183.5
C 1 3 25470 134.57 778 782 183.5
C 3 233 9086 45.26 778 782 183.5
D 13 249 635238 3280.18 766 744 193.4
D 5 222 458812 2368.1 766 744 193.4
D 5 171 205935 1060.79 766 744 193.4

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