ASTROSAT CZTI

Data Quality Report

Orbit 43192

Creation date: 2024-06-27T22:49:07.381556
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/AS1A09_036T17_9000005858_43192cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43192cztM0_level2_quad_clean.evt
Size (bytes)530,697,600124,240,320
Size506.1 MB 118.5 MB
Events in quadrant A6,055,416813,921
Events in quadrant B5,136,254848,176
Events in quadrant C3,880,842808,909
Events in quadrant D3,964,897746,176

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233522
B0206362
C0166023
D0175572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78283003.832397%
B78282032.593255%
C7827460.587709%
D7827971.239300%

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 9170 7829 239 239 2.61% 3.05%
B 9170 7829 74 74 0.81% 0.95%
C 9169 7828 32 32 0.35% 0.41%
D 9169 7828 90 90 0.98% 1.15%

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 15 222 1280063 7422.82 833 817 172.3
A 10 83 794369 4604.58 833 817 172.3
A 15 237 467393 2707.3 833 817 172.3
B 0 186 950234 5837.76 840 816 162.6
B 0 229 568580 3491.06 840 816 162.6
B 0 189 244610 1499.04 840 816 162.6
C 15 214 319782 1637.83 824 829 194.7
C 14 254 313766 1606.94 824 829 194.7
C 4 254 18358 90.01 824 829 194.7
D 1 52 450853 2217.36 822 799 203.0
D 12 6 121809 596.2 822 799 203.0
D 13 249 65870 320.6 822 799 203.0

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