ASTROSAT CZTI

Data Quality Report

Orbit 04347

Creation date: 2024-06-27T14:40:41.580144
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/AS1G05_219T01_9000000540_04347cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04347cztM0_level2_quad_clean.evt
Size (bytes)999,699,84068,641,920
Size953.4 MB 65.5 MB
Events in quadrant A3,236,243503,859
Events in quadrant B18,813,568117,393
Events in quadrant C3,885,704489,520
Events in quadrant D3,857,139467,056

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147442
B0606451
C0166521
D0164981

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7147430.601651%
B7147711799.580243%
C7147851.189310%
D71472243.134182%

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 7397 7148 4 4 0.05% 0.06%
B 7396 7146 7027 7027 95.01% 98.33%
C 7397 7149 62 62 0.84% 0.87%
D 7397 7149 213 213 2.88% 2.98%

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 13 251 34449 201.76 814 797 166.8
A 15 234 25415 147.6 814 797 166.8
A 0 13 16195 92.32 814 797 166.8
B 3 0 17581569 302823.92 300 293 58.1
B 14 167 30416 518.85 300 293 58.1
B 15 204 10224 171.05 300 293 58.1
C 9 247 821484 4460.6 782 785 184.0
C 10 65 6863 33.03 782 785 184.0
C 13 61 6502 31.07 782 785 184.0
D 9 35 497635 2646.98 768 744 187.7
D 13 53 156269 828.49 768 744 187.7
D 8 112 98810 522.41 768 744 187.7

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