ASTROSAT CZTI

Data Quality Report

Orbit 08407

Creation date: 2024-06-27T15:32:12.685891
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/AS1A03_025T07_9000001182_08407cztM0_level2.evt modeM0/AS1A03_025T07_9000001182_08407cztM0_level2_quad_clean.evt
Size (bytes)438,304,32091,267,200
Size418.0 MB 87.0 MB
Events in quadrant A2,991,324590,091
Events in quadrant B3,146,511603,739
Events in quadrant C2,972,728583,384
Events in quadrant D3,730,399542,288

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01322
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01309216
B01337223
C01316419
D01529814

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6370440.690738%
B6367560.879535%
C6369260.408227%
D63712433.814158%

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 8716 6379 0 0 0.00% 0.00%
B 8716 6379 3 3 0.03% 0.05%
C 8716 6379 2 2 0.02% 0.03%
D 8716 6379 191 191 2.19% 2.99%

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 13 251 9576 55.84 774 759 157.9
A 0 226 7346 41.72 774 759 157.9
A 12 194 6766 38.04 774 759 157.9
B 0 214 73461 492.92 780 760 147.5
B 12 111 15784 101.86 780 760 147.5
B 5 255 13942 89.37 780 760 147.5
C 1 16 43320 243.74 749 753 174.6
C 13 61 5568 27.57 749 753 174.6
C 12 4 4934 23.94 749 753 174.6
D 1 52 606285 3294.61 725 707 183.8
D 7 71 141491 765.93 725 707 183.8
D 12 221 65338 351.62 725 707 183.8

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