ASTROSAT CZTI

Data Quality Report

Orbit 43288

Creation date: 2024-06-27T22:50:12.049077
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_089T01_9000005864_43288cztM0_level2.fits modeM0/AS1A12_089T01_9000005864_43288cztM0_level2_quad_clean.evt
Size (bytes)324,074,88085,570,560
Size309.1 MB 81.6 MB
Events in quadrant A3,316,212560,336
Events in quadrant B2,430,853593,054
Events in quadrant C2,479,867570,693
Events in quadrant D3,377,925514,548

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0370
C0370
D0370

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128762
B0105192
C0103632
D0133692

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50231543.065897%
B5023190.378260%
C502360.119451%
D50231262.508461%

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 7055 5024 120 120 1.70% 2.39%
B 7055 5024 13 13 0.18% 0.26%
C 7055 5024 2 2 0.03% 0.04%
D 7055 5024 134 134 1.90% 2.67%

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 562765 4889.04 558 548 115.0
A 15 237 502924 4368.66 558 548 115.0
A 12 189 68092 587.36 558 548 115.0
B 5 63 61308 545.95 563 547 111.3
B 5 255 38863 344.28 563 547 111.3
B 15 85 38541 341.38 563 547 111.3
C 15 214 216108 1667.81 550 554 129.2
C 14 254 58444 447.91 550 554 129.2
C 3 233 53253 407.75 550 554 129.2
D 1 52 792739 5897.24 546 531 134.3
D 12 6 128023 949.05 546 531 134.3
D 2 249 95215 704.83 546 531 134.3

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