ASTROSAT CZTI

Data Quality Report

Orbit 06384

Creation date: 2024-06-27T15:06:34.905191
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/AS1G06_164T01_9000000844_06384cztM0_level2.evt modeM0/AS1G06_164T01_9000000844_06384cztM0_level2_quad_clean.evt
Size (bytes)535,605,12096,108,480
Size510.8 MB 91.7 MB
Events in quadrant A5,966,721610,901
Events in quadrant B3,522,771627,499
Events in quadrant C2,924,715617,544
Events in quadrant D3,363,180598,355

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223012
B0147171
C0133571
D0142481

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65395498.395779%
B65392153.287965%
C6539921.406943%
D65391452.217464%

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 7654 6540 203 203 2.65% 3.10%
B 7654 6540 45 45 0.59% 0.69%
C 7654 6540 1 1 0.01% 0.02%
D 7654 6540 31 31 0.41% 0.47%

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 8 15 2954881 19242.79 760 743 153.5
A 15 174 31554 200.7 760 743 153.5
A 13 251 30825 195.95 760 743 153.5
B 0 219 152162 1039.73 772 753 145.6
B 4 170 106210 724.18 772 753 145.6
B 4 172 81059 551.46 772 753 145.6
C 4 254 16012 89.79 744 745 170.0
C 13 61 5897 30.3 744 745 170.0
C 1 241 3608 16.84 744 745 170.0
D 2 152 135953 752.09 750 727 179.8
D 11 241 122478 677.15 750 727 179.8
D 5 97 92397 509.85 750 727 179.8

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