ASTROSAT CZTI

Data Quality Report

Orbit 25203

Creation date: 2024-06-27T19:15:00.900932
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/AS1A07_027T01_9000003690_25203cztM0_level2.evt modeM0/AS1A07_027T01_9000003690_25203cztM0_level2_quad_clean.evt
Size (bytes)465,923,52078,480,000
Size444.3 MB 74.8 MB
Events in quadrant A3,109,580493,995
Events in quadrant B3,482,630496,323
Events in quadrant C3,201,449472,498
Events in quadrant D3,880,286465,026

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131780
B0142530
C0133910
D0157420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6437530.823365%
B6438951.475614%
C6438741.149425%
D64381061.646474%

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 7347 6438 0 0 0.00% 0.00%
B 7348 6439 14 14 0.19% 0.22%
C 7348 6439 3 3 0.04% 0.05%
D 7348 6439 36 36 0.49% 0.56%

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 13 254 10282 58.85 806 788 161.3
A 3 137 7473 41.44 806 788 161.3
A 0 226 6779 37.14 806 788 161.3
B 5 235 290107 1903.88 797 777 152.0
B 3 64 26157 167.01 797 777 152.0
B 12 111 18603 117.3 797 777 152.0
C 14 238 121779 676.62 765 771 178.8
C 7 247 55199 304.34 765 771 178.8
C 3 233 15968 84.97 765 771 178.8
D 8 195 450517 2404.15 776 754 187.1
D 1 52 134452 714.67 776 754 187.1
D 12 235 127724 678.7 776 754 187.1

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