ASTROSAT CZTI

Data Quality Report

Orbit 43174

Creation date: 2024-06-27T22:48:53.953414
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_9000005856_43174cztM0_level2.fits modeM0/AS1C07_001T10_9000005856_43174cztM0_level2_quad_clean.evt
Size (bytes)437,328,00089,035,200
Size417.1 MB 84.9 MB
Events in quadrant A6,071,100528,718
Events in quadrant B3,977,717615,873
Events in quadrant C2,582,621594,278
Events in quadrant D3,109,194554,292

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0218322
B0160382
C0115963
D0134432

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5754107518.682656%
B57543035.265902%
C575340.069529%
D57531502.607335%

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 7186 5755 857 857 11.93% 14.89%
B 7186 5755 226 226 3.15% 3.93%
C 7185 5754 0 0 0.00% 0.00%
D 7185 5754 111 111 1.54% 1.93%

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 15 222 2987808 26832.72 543 532 111.3
A 10 83 563987 5061.14 543 532 111.3
A 15 237 335298 3006.98 543 532 111.3
B 0 186 1571474 13716.73 596 579 114.5
B 4 67 22710 193.24 596 579 114.5
B 12 111 14381 120.52 596 579 114.5
C 15 214 238308 1708.49 590 593 139.1
C 14 254 35147 248.34 590 593 139.1
C 15 111 9610 64.81 590 593 139.1
D 12 233 499535 3462.74 589 571 144.1
D 1 52 228262 1580.14 589 571 144.1
D 1 47 57027 391.8 589 571 144.1

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