ASTROSAT CZTI

Data Quality Report

Orbit 09217

Creation date: 2024-06-27T15:42:51.039118
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/AS1A02_178T01_9000001286_09217cztM0_level2.evt modeM0/AS1A02_178T01_9000001286_09217cztM0_level2_quad_clean.evt
Size (bytes)498,386,88086,048,640
Size475.3 MB 82.1 MB
Events in quadrant A4,555,945552,217
Events in quadrant B3,420,098558,057
Events in quadrant C2,877,836540,898
Events in quadrant D3,812,554515,158

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01284
B01280
C01282
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018066160
B01441968
C01296977
D01570695

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62871712.719898%
B6310620.982567%
C6301170.269798%
D63023084.887337%

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 7492 6336 70 70 0.93% 1.10%
B 7492 6338 7 7 0.09% 0.11%
C 7492 6338 0 0 0.00% 0.00%
D 7492 6338 290 290 3.87% 4.58%

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 5 1248974 7971.7 764 750 156.6
A 5 16 119710 759.73 764 750 156.6
A 15 174 88437 560.01 764 750 156.6
B 8 234 160352 1074.67 771 752 148.5
B 4 173 65802 438.01 771 752 148.5
B 0 214 54152 359.57 771 752 148.5
C 13 61 5597 28.45 735 737 170.8
C 14 67 4886 24.29 735 737 170.8
C 8 222 3715 17.43 735 737 170.8
D 1 52 719332 3715.76 717 700 193.4
D 7 71 136174 700.48 717 700 193.4
D 9 64 104152 534.91 717 700 193.4

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