ASTROSAT CZTI

Data Quality Report

Orbit 47509

Creation date: 2024-07-11T08:01:02.170954
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_037T05_9000006332_47509cztM0_level2.fits modeM0/AS1A13_037T05_9000006332_47509cztM0_level2_quad_clean.evt
Size (bytes)562,029,120131,970,240
Size536.0 MB 125.9 MB
Events in quadrant A8,221,088867,331
Events in quadrant B4,363,064911,957
Events in quadrant C3,523,759863,614
Events in quadrant D4,067,716789,094

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0297570
B0185040
C0166670
D0180550

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81143434.227262%
B8114810.998275%
C811440.049298%
D8114570.702490%

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 8114 8114 146 146 1.80% 1.80%
B 8114 8114 20 20 0.25% 0.25%
C 8114 8114 1 1 0.01% 0.01%
D 8114 8114 46 46 0.57% 0.57%

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 4188158 22049.5 899 879 189.9
A 13 248 362835 1906.0 899 879 189.9
A 15 235 93669 488.62 899 879 189.9
B 0 200 367244 2042.19 909 881 179.4
B 5 32 227257 1261.87 909 881 179.4
B 0 198 98633 544.89 909 881 179.4
C 1 3 30460 140.98 889 895 209.7
C 3 233 22239 101.78 889 895 209.7
C 13 61 6086 24.75 889 895 209.7
D 2 249 226974 1020.03 884 856 221.7
D 2 165 115686 518.0 884 856 221.7
D 4 222 109884 491.83 884 856 221.7

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