ASTROSAT CZTI

Data Quality Report

Orbit 10668

Creation date: 2024-06-27T16:02:13.830433
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_097T01_9000001540_10668cztM0_level2.evt modeM0/AS1A03_097T01_9000001540_10668cztM0_level2_quad_clean.evt
Size (bytes)502,401,60081,008,640
Size479.1 MB 77.3 MB
Events in quadrant A2,795,555526,274
Events in quadrant B4,049,660516,564
Events in quadrant C3,128,296523,658
Events in quadrant D4,841,051473,638

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122732
B0159141
C0133011
D0184301

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5906240.406366%
B59063606.095496%
C5906811.371487%
D59063726.298679%

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 7211 5907 0 0 0.00% 0.00%
B 7211 5907 229 229 3.18% 3.88%
C 7211 5907 58 58 0.80% 0.98%
D 7211 5907 339 339 4.70% 5.74%

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 3 1 23062 155.97 708 695 143.4
A 4 2 12173 80.04 708 695 143.4
A 15 174 9603 62.12 708 695 143.4
B 4 239 1077772 8098.73 704 688 133.0
B 4 81 75201 560.27 704 688 133.0
B 0 214 69111 514.48 704 688 133.0
C 4 254 370996 2310.18 694 699 160.3
C 4 175 20008 120.46 694 699 160.3
C 12 4 16592 99.15 694 699 160.3
D 8 195 531867 3254.7 672 655 163.2
D 14 34 452588 2768.96 672 655 163.2
D 4 95 312608 1911.31 672 655 163.2

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