ASTROSAT CZTI

Data Quality Report

Orbit 41034

Creation date: 2024-06-27T22:23:30.944903
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/AS1A12_029T02_9000005590_41034cztM0_level2.fits modeM0/AS1A12_029T02_9000005590_41034cztM0_level2_quad_clean.evt
Size (bytes)970,081,920256,279,680
Size925.1 MB 244.4 MB
Events in quadrant A10,631,5171,701,134
Events in quadrant B7,147,3261,759,089
Events in quadrant C7,983,1171,685,994
Events in quadrant D8,915,7591,515,881

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03280
B03280
C03280
D03280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0421905
B0323314
C0338884
D0379764

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0550
B0550
C0550
D0550

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A15900620.389937%
B15900230.144654%
C15900810.509434%
D159004422.779874%

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 21422 15904 19 19 0.09% 0.12%
B 21422 15904 0 0 0.00% 0.00%
C 21422 15904 74 74 0.35% 0.47%
D 21422 15904 375 375 1.75% 2.36%

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 12 189 2487874 6999.78 1750 1715 355.2
A 10 83 1315736 3699.63 1750 1715 355.2
A 13 248 27362 72.21 1750 1715 355.2
B 0 190 176333 515.55 1741 1691 338.7
B 0 229 110807 322.11 1741 1691 338.7
B 12 111 44745 127.1 1741 1691 338.7
C 15 214 673497 1692.16 1710 1717 397.0
C 14 254 373299 935.98 1710 1717 397.0
C 12 249 128323 318.91 1710 1717 397.0
D 13 249 1543345 3731.06 1695 1647 413.2
D 2 249 389199 937.91 1695 1647 413.2
D 9 19 195826 469.93 1695 1647 413.2

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