ASTROSAT CZTI

Data Quality Report

Orbit 43385

Creation date: 2024-06-27T22:51:19.468335
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/AS1C07_001T10_9000005872_43385cztM0_level2.fits modeM0/AS1C07_001T10_9000005872_43385cztM0_level2_quad_clean.evt
Size (bytes)323,184,96089,507,520
Size308.2 MB 85.4 MB
Events in quadrant A3,145,369593,474
Events in quadrant B2,392,961621,624
Events in quadrant C3,138,205589,915
Events in quadrant D2,876,865537,133

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126632
B0108312
C0127703
D0124882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5261901.710701%
B5261210.399164%
C5260470.893536%
D52601222.319392%

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 7144 5262 67 67 0.94% 1.27%
B 7144 5262 11 11 0.15% 0.21%
C 7143 5261 33 33 0.46% 0.63%
D 7143 5261 112 112 1.57% 2.13%

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 579263 4999.61 565 554 115.8
A 15 237 338946 2923.45 565 554 115.8
A 13 6 16907 141.28 565 554 115.8
B 5 172 45983 412.77 573 557 110.1
B 3 112 33662 300.82 573 557 110.1
B 15 85 24293 215.68 573 557 110.1
C 3 233 599334 4588.0 563 566 130.5
C 15 214 216728 1656.32 563 566 130.5
C 0 239 67440 512.42 563 566 130.5
D 12 218 182056 1331.38 556 539 136.3
D 1 52 136338 996.05 556 539 136.3
D 13 249 129793 948.05 556 539 136.3

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