ASTROSAT CZTI

Data Quality Report

Orbit 19419

Creation date: 2024-06-27T18:02:36.826694
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/AS1A05_226T09_9000002884_19419cztM0_level2.evt modeM0/AS1A05_226T09_9000002884_19419cztM0_level2_quad_clean.evt
Size (bytes)609,094,08083,905,920
Size580.9 MB 80.0 MB
Events in quadrant A3,471,527550,750
Events in quadrant B3,765,442549,494
Events in quadrant C3,577,357521,170
Events in quadrant D7,133,837407,119

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149892
B0157302
C0151602
D0261322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7354400.543922%
B7355831.128484%
C7355720.978926%
D7355127317.307954%

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 8924 7355 0 0 0.00% 0.00%
B 8925 7356 18 18 0.20% 0.24%
C 8925 7355 0 0 0.00% 0.00%
D 8925 7355 1216 1216 13.62% 16.53%

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 11 29 13869 71.69 895 875 181.2
A 13 254 10239 51.67 895 875 181.2
A 0 226 7711 37.72 895 875 181.2
B 7 220 182120 1069.14 893 869 169.5
B 0 198 31547 180.96 893 869 169.5
B 0 230 26346 150.28 893 869 169.5
C 14 238 133072 669.67 848 857 197.4
C 3 233 103548 520.13 848 857 197.4
C 9 221 19637 95.12 848 857 197.4
D 7 238 3922245 20832.4 767 745 188.2
D 1 52 259436 1374.26 767 745 188.2
D 2 234 23492 120.84 767 745 188.2

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