ASTROSAT CZTI

Data Quality Report

Orbit 34163

Creation date: 2024-06-27T20:57:18.087942
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_047T03_9000004880_34163cztM0_level2.evt modeM0/AS1A11_047T03_9000004880_34163cztM0_level2_quad_clean.evt
Size (bytes)429,969,60077,028,480
Size410.1 MB 73.5 MB
Events in quadrant A2,444,939501,554
Events in quadrant B3,215,874512,457
Events in quadrant C3,658,909487,133
Events in quadrant D3,349,693467,856

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0390

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104853
B0128682
C0141302
D0134952

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A518270.135083%
B5182961.852567%
C51821973.801621%
D5182661.273640%

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 7304 5183 0 0 0.00% 0.00%
B 7303 5182 53 53 0.73% 1.02%
C 7303 5182 167 167 2.29% 3.22%
D 7303 5182 49 49 0.67% 0.95%

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 10 83 20857 160.96 625 613 125.8
A 13 6 9670 72.01 625 613 125.8
A 13 254 9287 68.97 625 613 125.8
B 5 172 256585 2174.6 621 607 117.7
B 5 255 222390 1884.1 621 607 117.7
B 5 31 91750 774.28 621 607 117.7
C 0 10 994433 7197.01 598 604 138.1
C 15 214 221192 1597.43 598 604 138.1
C 0 239 76332 548.4 598 604 138.1
D 8 195 627737 4283.88 598 581 146.4
D 13 249 124852 848.85 598 581 146.4
D 12 218 98149 666.45 598 581 146.4

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