ASTROSAT CZTI

Data Quality Report

Orbit 34348

Creation date: 2022-02-03T22:09:07.972208
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_019T01_9000004906_34348cztM0_level2.evt modeM0/AS1A05_019T01_9000004906_34348cztM0_level2_quad_clean.evt
Size (bytes)438,206,40029,358,720
Size417.9 MB 28.0 MB
Events in quadrant A1,465,317214,029
Events in quadrant B2,277,410206,240
Events in quadrant C1,798,328202,876
Events in quadrant D7,531,68756,903

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061052
B086761
C070601
D0243651

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A290470.241047%
B29042107.231405%
C2904561.928375%
D2904278896.005510%

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 4847 2905 1 1 0.02% 0.03%
B 4847 2905 126 126 2.60% 4.34%
C 4847 2905 36 36 0.74% 1.24%
D 4847 2905 2719 2719 56.10% 93.60%

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 9 143 16994 224.58 368 361 74.1
A 10 83 16689 220.46 368 361 74.1
A 13 6 6908 88.4 368 361 74.1
B 5 172 710757 10314.93 355 347 68.9
B 0 229 70398 1017.12 355 347 68.9
B 4 251 23565 337.12 355 347 68.9
C 14 254 194062 2329.58 356 360 83.1
C 15 214 121351 1455.11 356 360 83.1
C 0 10 73873 884.11 356 360 83.1
D 7 223 5758243 131323.92 171 166 43.8
D 12 235 330418 7532.03 171 166 43.8
D 2 249 277147 6317.08 171 166 43.8

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