ASTROSAT CZTI

Data Quality Report

Orbit 39983

Creation date: 2024-06-27T22:10:54.386031
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_054T03_9000005516_39983cztM0_level2.fits modeM0/AS1A12_054T03_9000005516_39983cztM0_level2_quad_clean.evt
Size (bytes)294,261,12093,358,080
Size280.6 MB 89.0 MB
Events in quadrant A2,789,444630,469
Events in quadrant B2,596,289651,873
Events in quadrant C2,669,812616,988
Events in quadrant D2,433,857565,471

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113673
B0110512
C0110482
D0108312

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5169100.193461%
B5169541.044689%
C5169460.889921%
D5169100.193461%

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 7291 5170 8 8 0.11% 0.15%
B 7291 5170 49 49 0.67% 0.95%
C 7291 5170 48 48 0.66% 0.93%
D 7291 5170 10 10 0.14% 0.19%

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 458915 3809.72 594 584 120.3
A 13 248 13202 104.88 594 584 120.3
A 6 10 9778 76.42 594 584 120.3
B 4 171 200864 1777.8 590 575 112.7
B 5 255 36972 323.07 590 575 112.7
B 0 230 18049 155.1 590 575 112.7
C 15 214 215950 1629.11 577 583 132.2
C 0 10 171751 1294.77 577 583 132.2
C 10 20 9797 69.7 577 583 132.2
D 2 250 61385 428.36 576 559 142.0
D 13 171 31277 216.33 576 559 142.0
D 12 227 28678 198.03 576 559 142.0

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