ASTROSAT CZTI

Data Quality Report

Orbit 45073

Creation date: 2024-06-27T23:09:39.050409
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_020T01_9000006040_45073cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45073cztM0_level2_quad_clean.evt
Size (bytes)581,483,520120,672,000
Size554.5 MB 115.1 MB
Events in quadrant A6,277,435801,730
Events in quadrant B3,809,165829,252
Events in quadrant C3,474,105805,526
Events in quadrant D7,377,549690,718

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240560
B0164330
C0159170
D0272190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75682002.642706%
B75691221.611838%
C7569240.317083%
D75697089.353944%

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 7568 7568 54 54 0.71% 0.71%
B 7569 7569 10 10 0.13% 0.13%
C 7569 7569 7 7 0.09% 0.09%
D 7569 7569 529 529 6.99% 6.99%

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 2663557 14740.92 863 842 180.6
A 13 248 110688 608.11 863 842 180.6
A 15 174 73150 400.3 863 842 180.6
B 0 183 122236 709.78 864 835 171.0
B 5 255 48051 276.05 864 835 171.0
B 15 36 41940 240.32 864 835 171.0
C 0 207 75117 371.28 848 854 200.0
C 14 254 33125 161.34 848 854 200.0
C 12 2 21570 103.57 848 854 200.0
D 1 52 1071056 5185.74 820 796 206.4
D 11 241 809076 3916.37 820 796 206.4
D 2 249 776007 3756.14 820 796 206.4

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