ASTROSAT CZTI

Data Quality Report

Orbit 16320

Creation date: 2024-06-27T17:20:59.334910
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/AS1A05_096T04_9000002406_16320cztM0_level2.evt modeM0/AS1A05_096T04_9000002406_16320cztM0_level2_quad_clean.evt
Size (bytes)344,292,48086,296,320
Size328.3 MB 82.3 MB
Events in quadrant A2,367,408564,144
Events in quadrant B2,757,977567,980
Events in quadrant C2,469,013554,439
Events in quadrant D2,465,391549,667

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108121
B0116830
C0108480
D0112000

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A538510.018570%
B5385490.909935%
C5385190.352832%
D5385240.445682%

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 5386 5386 0 0 0.00% 0.00%
B 5386 5386 34 34 0.63% 0.63%
C 5386 5386 0 0 0.00% 0.00%
D 5386 5386 21 21 0.39% 0.39%

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 0 226 5505 39.11 613 599 125.4
A 12 194 4511 31.19 613 599 125.4
A 15 174 4454 30.73 613 599 125.4
B 3 112 183715 1559.24 615 600 117.4
B 4 173 76176 643.54 615 600 117.4
B 0 198 23133 191.87 615 600 117.4
C 14 238 91140 646.89 596 599 140.0
C 3 233 44067 310.57 596 599 140.0
C 0 207 7982 52.75 596 599 140.0
D 12 110 86286 586.16 601 583 146.2
D 1 52 74072 502.62 601 583 146.2
D 2 234 24042 160.45 601 583 146.2

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