ASTROSAT CZTI

Data Quality Report

Orbit 44472

Creation date: 2024-06-27T23:01:45.751686
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/AS1A13_012T08_9000005986_44472cztM0_level2.fits modeM0/AS1A13_012T08_9000005986_44472cztM0_level2_quad_clean.evt
Size (bytes)374,610,240103,181,760
Size357.3 MB 98.4 MB
Events in quadrant A4,225,111689,876
Events in quadrant B2,825,540714,303
Events in quadrant C2,884,943677,075
Events in quadrant D3,451,315612,677

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01262
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01766722
B0128126
C0129615
D0147375

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6164811.314082%
B6167811.313443%
C6167450.729690%
D61671262.043133%

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 7308 6169 4 4 0.05% 0.06%
B 7309 6169 11 11 0.15% 0.18%
C 7309 6170 3 3 0.04% 0.05%
D 7309 6170 84 84 1.15% 1.36%

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 1557322 10966.19 688 675 141.9
A 3 137 7547 48.41 688 675 141.9
A 0 243 7270 46.46 688 675 141.9
B 5 172 45881 334.28 687 665 135.3
B 0 229 28400 205.04 687 665 135.3
B 0 168 23717 170.42 687 665 135.3
C 2 14 93333 587.07 672 677 157.8
C 3 233 72745 456.63 672 677 157.8
C 14 254 66328 415.97 672 677 157.8
D 13 249 358490 2168.15 663 644 165.0
D 2 249 271142 1638.92 663 644 165.0
D 1 52 139653 842.24 663 644 165.0

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