ASTROSAT CZTI

Data Quality Report

Orbit 34145

Creation date: 2024-06-27T20:57:04.184713
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/AS1A11_059T05_9000004876_34145cztM0_level2.evt modeM0/AS1A11_059T05_9000004876_34145cztM0_level2_quad_clean.evt
Size (bytes)733,409,28062,953,920
Size699.4 MB 60.0 MB
Events in quadrant A2,662,956431,290
Events in quadrant B11,887,221278,338
Events in quadrant C3,473,021422,440
Events in quadrant D3,827,734400,007

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113623
B0388742
C0136382
D0150542

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A532870.131381%
B5328445083.521021%
C53281402.627628%
D5328711.332583%

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 7211 5329 0 0 0.00% 0.00%
B 7211 5329 4348 4348 60.30% 81.59%
C 7211 5329 108 108 1.50% 2.03%
D 7211 5329 84 84 1.16% 1.58%

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 15 169 150962 1172.68 641 628 128.2
A 10 83 20679 156.41 641 628 128.2
A 13 6 11871 87.7 641 628 128.2
B 5 31 4329015 60370.13 373 364 71.7
B 5 15 3810907 53144.27 373 364 71.7
B 5 14 1996646 27841.42 373 364 71.7
C 0 10 472810 3246.74 626 634 145.4
C 15 214 227664 1561.09 626 634 145.4
C 14 254 226806 1555.19 626 634 145.4
D 8 195 696243 4501.87 623 606 154.5
D 7 223 234410 1513.08 623 606 154.5
D 10 118 203140 1310.71 623 606 154.5

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