ASTROSAT CZTI

Data Quality Report

Orbit 06352

Creation date: 2024-06-27T15:06:04.306751
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/AS1A02_124T01_9000000842_06352cztM0_level2.evt modeM0/AS1A02_124T01_9000000842_06352cztM0_level2_quad_clean.evt
Size (bytes)614,419,20077,388,480
Size586.0 MB 73.8 MB
Events in quadrant A3,191,488511,190
Events in quadrant B7,976,588379,344
Events in quadrant C3,222,982513,517
Events in quadrant D3,778,806487,978

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135493
B0279512
C0136612
D0154662

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6457981.517733%
B6457222334.427753%
C6457961.486759%
D64571642.539879%

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 7612 6458 0 0 0.00% 0.00%
B 7612 6458 2064 2064 27.12% 31.96%
C 7612 6458 0 0 0.00% 0.00%
D 7612 6458 67 67 0.88% 1.04%

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 15 236 102660 638.45 795 777 159.6
A 8 15 14035 83.08 795 777 159.6
A 12 194 8240 46.77 795 777 159.6
B 0 228 5171791 40629.69 688 672 127.3
B 4 80 67121 522.09 688 672 127.3
B 0 219 63045 490.06 688 672 127.3
C 4 254 144669 800.45 786 790 179.7
C 13 61 6118 29.64 786 790 179.7
C 8 222 5226 24.68 786 790 179.7
D 12 220 380734 2009.39 777 754 189.1
D 4 95 163569 860.99 777 754 189.1
D 2 152 62657 327.35 777 754 189.1

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