ASTROSAT CZTI

Data Quality Report

Orbit 15389

Creation date: 2024-06-27T17:07:51.806490
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/AS1C03_001T01_9000002270_15389cztM0_level2.evt modeM0/AS1C03_001T01_9000002270_15389cztM0_level2_quad_clean.evt
Size (bytes)750,568,320101,692,800
Size715.8 MB 97.0 MB
Events in quadrant A3,833,608693,648
Events in quadrant B5,997,536647,945
Events in quadrant C3,193,137702,285
Events in quadrant D9,250,110563,367

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159702
B0224731
C0138921
D0322191

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67541582.339354%
B675489513.251407%
C6754310.458987%
D6754221732.824993%

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 7470 6755 97 97 1.30% 1.44%
B 7470 6756 629 629 8.42% 9.31%
C 7470 6756 0 0 0.00% 0.00%
D 7469 6755 1760 1760 23.56% 26.05%

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 14 238 555635 3509.94 773 754 158.1
A 14 237 216899 1367.24 773 754 158.1
A 9 143 48614 302.74 773 754 158.1
B 10 245 2312235 16382.86 742 722 141.1
B 8 3 215024 1518.87 742 722 141.1
B 10 16 107472 756.59 742 722 141.1
C 3 233 190503 1075.5 768 772 176.4
C 13 61 5709 27.99 768 772 176.4
C 7 247 2633 10.55 768 772 176.4
D 13 122 3937720 23649.88 679 657 166.5
D 9 68 1794718 10776.9 679 657 166.5
D 2 33 302857 1815.31 679 657 166.5

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