ASTROSAT CZTI

Data Quality Report

Orbit 43087

Creation date: 2024-06-27T22:47:51.785413
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/AS1T05_152T01_9000005846_43087cztM0_level2.fits modeM0/AS1T05_152T01_9000005846_43087cztM0_level2_quad_clean.evt
Size (bytes)342,290,88093,585,600
Size326.4 MB 89.3 MB
Events in quadrant A3,360,890625,589
Events in quadrant B2,931,706631,336
Events in quadrant C2,907,225610,372
Events in quadrant D3,028,069568,524

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136562
B0126752
C0122652
D0132283

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5684761.337087%
B5684581.020408%
C5684400.703730%
D5683470.827028%

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 7117 5685 42 42 0.59% 0.74%
B 7117 5685 37 37 0.52% 0.65%
C 7117 5685 31 31 0.44% 0.55%
D 7116 5684 39 39 0.55% 0.69%

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 624255 4997.45 604 590 124.8
A 15 237 243227 1944.26 604 590 124.8
A 12 189 112443 896.28 604 590 124.8
B 5 255 186606 1606.95 599 583 115.8
B 0 229 170320 1466.26 599 583 115.8
B 0 189 114745 986.18 599 583 115.8
C 14 254 310039 2222.57 594 598 139.2
C 15 214 253013 1812.98 594 598 139.2
C 0 207 15066 103.92 594 598 139.2
D 1 52 327285 2278.82 593 576 143.4
D 2 16 172993 1202.62 593 576 143.4
D 12 233 67980 470.15 593 576 143.4

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