ASTROSAT CZTI

Data Quality Report

Orbit 14644

Creation date: 2024-06-27T16:57:56.161684
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/AS1A04_148T01_9000002162_14644cztM0_level2.evt modeM0/AS1A04_148T01_9000002162_14644cztM0_level2_quad_clean.evt
Size (bytes)264,245,76041,676,480
Size252.0 MB 39.7 MB
Events in quadrant A1,743,431260,275
Events in quadrant B1,732,301261,720
Events in quadrant C2,353,468256,595
Events in quadrant D1,949,512250,269

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072882
B072921
C092131
D079041

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3275531.618321%
B3275641.954198%
C3275672.045802%
D32751163.541985%

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 4406 3276 0 0 0.00% 0.00%
B 4406 3276 4 4 0.09% 0.12%
C 4406 3276 0 0 0.00% 0.00%
D 4406 3276 71 71 1.61% 2.17%

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 8 15 32843 376.85 427 419 86.0
A 0 23 19105 217.18 427 419 86.0
A 1 162 14628 165.14 427 419 86.0
B 4 173 21317 256.77 426 416 81.4
B 10 247 11477 135.88 426 416 81.4
B 12 111 9032 105.85 426 416 81.4
C 3 233 734852 7698.81 413 415 95.4
C 8 128 3756 35.02 413 415 95.4
C 13 61 3116 28.31 413 415 95.4
D 15 0 317581 2993.61 409 398 106.0
D 12 110 36967 345.14 409 398 106.0
D 2 234 10838 98.53 409 398 106.0

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