ASTROSAT CZTI

Data Quality Report

Orbit 13342

Creation date: 2024-06-27T16:39:19.843376
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_101T01_9000001984_13342cztM0_level2.evt modeM0/AS1A04_101T01_9000001984_13342cztM0_level2_quad_clean.evt
Size (bytes)211,570,56020,577,600
Size201.8 MB 19.6 MB
Events in quadrant A1,463,381100,752
Events in quadrant B1,731,151102,845
Events in quadrant C1,390,017101,500
Events in quadrant D1,610,59496,899

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063791
B071050
C061950
D068790

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3093170.549628%
B3093190.614290%
C309320.064662%
D3093170.549628%

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 3096 3095 12 12 0.39% 0.39%
B 3096 3095 5 5 0.16% 0.16%
C 3096 3095 0 0 0.00% 0.00%
D 3096 3095 14 14 0.45% 0.45%

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 15 69 60614 803.76 357 348 75.0
A 8 15 14715 191.61 357 348 75.0
A 1 162 7220 91.65 357 348 75.0
B 0 219 212727 2996.96 357 349 70.9
B 3 64 52328 733.5 357 349 70.9
B 4 142 38256 534.92 357 349 70.9
C 3 233 34063 415.13 347 349 81.2
C 13 61 2506 26.56 347 349 81.2
C 14 234 1672 16.29 347 349 81.2
D 1 52 204256 2374.84 347 336 85.9
D 5 222 36912 425.96 347 336 85.9
D 8 195 28925 332.95 347 336 85.9

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