ASTROSAT CZTI

Data Quality Report

Orbit 44414

Creation date: 2024-06-27T23:03:18.891179
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_008T08_9000005998_44414cztM0_level2.fits modeM0/AS1A13_008T08_9000005998_44414cztM0_level2_quad_clean.evt
Size (bytes)497,335,680107,357,760
Size474.3 MB 102.4 MB
Events in quadrant A4,743,420741,591
Events in quadrant B3,319,543769,518
Events in quadrant C3,263,111729,344
Events in quadrant D6,591,357568,499

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0196451
B0138321
C0139811
D0239251

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63411432.255165%
B63421101.734469%
C6342871.371807%
D6342114618.070009%

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 7461 6342 4 4 0.05% 0.06%
B 7462 6343 24 24 0.32% 0.38%
C 7462 6343 38 38 0.51% 0.60%
D 7462 6343 1016 1016 13.62% 16.02%

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 1674479 10679.54 761 746 156.7
A 13 248 74868 472.95 761 746 156.7
A 10 248 23072 142.45 761 746 156.7
B 0 190 90851 603.18 756 737 149.4
B 5 255 87041 577.67 756 737 149.4
B 4 170 59900 396.01 756 737 149.4
C 14 254 335932 1937.37 736 741 173.0
C 12 16 30600 172.58 736 741 173.0
C 3 233 19447 108.12 736 741 173.0
D 12 17 1740780 10318.46 675 656 168.6
D 5 235 566953 3357.99 675 656 168.6
D 2 249 547724 3243.96 675 656 168.6

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