ASTROSAT CZTI

Data Quality Report

Orbit 23680

Creation date: 2024-06-27T18:57:30.616030
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/AS1A07_046T01_9000003498_23680cztM0_level2.evt modeM0/AS1A07_046T01_9000003498_23680cztM0_level2_quad_clean.evt
Size (bytes)384,451,20085,078,080
Size366.6 MB 81.1 MB
Events in quadrant A2,477,783562,376
Events in quadrant B2,597,115585,657
Events in quadrant C2,557,599553,769
Events in quadrant D3,667,427521,075

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105681
B0108871
C0107221
D0144431

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5040270.535714%
B5040400.793651%
C5040511.011905%
D50403557.043651%

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 6330 5041 0 0 0.00% 0.00%
B 6330 5040 1 1 0.02% 0.02%
C 6330 5041 1 1 0.02% 0.02%
D 6330 5040 312 312 4.93% 6.19%

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 13 254 8245 58.84 642 630 129.4
A 0 226 5597 38.38 642 630 129.4
A 3 137 5363 36.57 642 630 129.4
B 0 230 19771 155.68 649 635 122.9
B 12 111 14453 112.42 649 635 122.9
B 11 111 12790 98.89 649 635 122.9
C 14 238 98492 674.77 620 626 145.0
C 7 247 32734 221.38 620 626 145.0
C 0 10 6223 38.59 620 626 145.0
D 1 52 1257800 8392.32 608 590 149.8
D 12 235 29180 190.85 608 590 149.8
D 7 238 27561 180.04 608 590 149.8

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