ASTROSAT CZTI

Data Quality Report

Orbit 46473

Creation date: 2024-06-27T23:23:34.235903
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/AS1T05_203T01_9000006214_46473cztM0_level2.fits modeM0/AS1T05_203T01_9000006214_46473cztM0_level2_quad_clean.evt
Size (bytes)502,024,320110,658,240
Size478.8 MB 105.5 MB
Events in quadrant A6,515,629734,564
Events in quadrant B3,515,478776,902
Events in quadrant C2,991,915736,277
Events in quadrant D5,060,520653,581

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235743
B0146011
C0132781
D0194561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64452924.530644%
B64451662.575640%
C6446180.279243%
D64462894.483401%

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 7645 6445 151 151 1.98% 2.34%
B 7645 6446 110 110 1.44% 1.71%
C 7646 6447 4 4 0.05% 0.06%
D 7646 6447 271 271 3.54% 4.20%

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 2980396 19481.42 738 722 152.9
A 2 79 371294 2422.84 738 722 152.9
A 0 247 255756 1667.44 738 722 152.9
B 5 32 444426 3011.47 752 727 147.3
B 5 29 35443 235.62 752 727 147.3
B 0 190 28378 187.67 752 727 147.3
C 12 2 42147 239.51 741 748 172.8
C 12 250 28823 162.42 741 748 172.8
C 3 233 23520 131.74 741 748 172.8
D 8 176 1233345 6818.96 723 702 180.8
D 13 249 290075 1600.81 723 702 180.8
D 1 52 263479 1453.68 723 702 180.8

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