ASTROSAT CZTI

Data Quality Report

Orbit 15194

Creation date: 2024-06-27T17:05:06.880339
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/AS1C03_015T04_9000002240_15194cztM0_level2.evt modeM0/AS1C03_015T04_9000002240_15194cztM0_level2_quad_clean.evt
Size (bytes)258,180,48057,101,760
Size246.2 MB 54.5 MB
Events in quadrant A1,489,002388,223
Events in quadrant B2,908,512365,520
Events in quadrant C1,704,925392,213
Events in quadrant D1,517,052374,980

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063532
B0106221
C070921
D064781

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2907321.100791%
B290755919.229446%
C2907331.135191%
D2907371.272790%

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 4068 2908 0 0 0.00% 0.00%
B 4068 2909 320 320 7.87% 11.00%
C 4068 2908 0 0 0.00% 0.00%
D 4068 2909 6 6 0.15% 0.21%

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 54444 703.02 372 364 76.9
A 3 1 4161 49.36 372 364 76.9
A 0 226 3316 38.37 372 364 76.9
B 3 112 1332189 19573.84 351 341 68.0
B 3 64 66647 974.48 351 341 68.0
B 4 48 38693 563.65 351 341 68.0
C 3 233 282826 3345.89 363 364 84.4
C 0 207 5827 64.71 363 364 84.4
C 13 61 2592 26.39 363 364 84.4
D 9 68 74310 837.33 363 352 88.3
D 2 120 21911 244.08 363 352 88.3
D 7 38 19683 218.86 363 352 88.3

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