ASTROSAT CZTI

Data Quality Report

Orbit 47828

Creation date: 2024-08-01T20:37:36.735603
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_081T01_9000006354_47828cztM0_level2.fits modeM0/AS1A13_081T01_9000006354_47828cztM0_level2_quad_clean.evt
Size (bytes)616,322,880103,705,920
Size587.8 MB 98.9 MB
Events in quadrant A6,907,383730,690
Events in quadrant B5,780,779630,704
Events in quadrant C4,129,236664,952
Events in quadrant D5,461,507631,935

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255040
B0221030
C0175100
D0209970

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6914791.142609%
B6915107915.603760%
C69153655.278380%
D69152964.280550%

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 6914 6914 3 3 0.04% 0.04%
B 6915 6915 1005 1005 14.53% 14.53%
C 6915 6915 357 357 5.16% 5.16%
D 6915 6915 319 319 4.61% 4.61%

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 3798496 24693.94 740 727 153.8
A 0 31 202168 1309.81 740 727 153.8
A 3 7 21074 132.3 740 727 153.8
B 0 186 2619191 19603.53 677 655 133.6
B 0 200 370130 2766.06 677 655 133.6
B 10 7 51468 380.41 677 655 133.6
C 12 2 858508 5154.75 704 705 166.4
C 14 254 484881 2909.53 704 705 166.4
C 12 249 20065 116.34 704 705 166.4
D 12 33 1265239 6981.18 716 689 181.1
D 12 2 911436 5027.94 716 689 181.1
D 7 67 161994 890.51 716 689 181.1

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