ASTROSAT CZTI

Data Quality Report

Orbit 45609

Creation date: 2024-06-27T23:14:12.173602
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_071T08_9000006114_45609cztM0_level2.fits modeM0/AS1A13_071T08_9000006114_45609cztM0_level2_quad_clean.evt
Size (bytes)665,507,520117,118,080
Size634.7 MB 111.7 MB
Events in quadrant A6,475,332812,885
Events in quadrant B4,986,708785,080
Events in quadrant C3,371,351799,364
Events in quadrant D9,212,722619,565

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244250
B0201370
C0157510
D0326221

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76041391.827985%
B76045226.864808%
C7605190.249836%
D7604135917.872173%

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 7604 7604 59 59 0.78% 0.78%
B 7604 7604 319 319 4.20% 4.20%
C 7605 7605 16 16 0.21% 0.21%
D 7604 7604 1186 1186 15.60% 15.60%

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 2978377 17096.48 834 818 174.2
A 10 248 215338 1231.73 834 818 174.2
A 0 243 40391 227.22 834 818 174.2
B 15 201 637282 3998.48 813 789 159.2
B 5 172 567943 3562.89 813 789 159.2
B 12 18 325383 2039.12 813 789 159.2
C 14 254 113406 587.94 818 823 191.5
C 2 14 36521 186.43 818 823 191.5
C 12 2 17693 88.1 818 823 191.5
D 8 48 2860449 14640.11 769 743 195.3
D 11 241 2266053 11597.13 769 743 195.3
D 13 249 317259 1620.39 769 743 195.3

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