ASTROSAT CZTI

Data Quality Report

Orbit 32307

Creation date: 2024-06-27T20:38:40.815694
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/AS1A10_005T01_9000004700_32307cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32307cztM0_level2_quad_clean.evt
Size (bytes)604,183,68099,760,320
Size576.2 MB 95.1 MB
Events in quadrant A3,291,070674,900
Events in quadrant B5,825,821657,269
Events in quadrant C4,185,645632,995
Events in quadrant D4,566,584613,270

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137533
B0217722
C0166292
D0177882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6336310.489268%
B63362824.450758%
C63362984.703283%
D63362163.409091%

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 7586 6337 0 0 0.00% 0.00%
B 7586 6337 131 131 1.73% 2.07%
C 7586 6337 83 83 1.09% 1.31%
D 7586 6337 139 139 1.83% 2.19%

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 12 189 53382 322.83 824 807 162.9
A 0 6 29258 174.7 824 807 162.9
A 13 6 17176 100.51 824 807 162.9
B 6 159 2085231 13799.21 812 792 151.1
B 5 172 390949 2582.88 812 792 151.1
B 0 168 64574 422.24 812 792 151.1
C 3 233 426182 2334.87 787 795 182.2
C 15 208 225753 1234.75 787 795 182.2
C 0 10 195920 1071.0 787 795 182.2
D 8 195 546111 2928.5 793 772 186.2
D 13 249 337700 1809.32 793 772 186.2
D 12 218 184091 984.43 793 772 186.2

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