ASTROSAT CZTI

Data Quality Report

Orbit 16299

Creation date: 2024-06-27T17:20:32.941751
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/AS1A05_101T04_9000002402_16299cztM0_level2.evt modeM0/AS1A05_101T04_9000002402_16299cztM0_level2_quad_clean.evt
Size (bytes)324,489,60062,294,400
Size309.5 MB 59.4 MB
Events in quadrant A2,265,505389,932
Events in quadrant B2,447,226397,978
Events in quadrant C2,384,953395,957
Events in quadrant D2,424,748387,828

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093781
B098721
C097641
D099081

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4477280.625419%
B4477501.116819%
C4477561.250838%
D4477420.938128%

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 5873 4479 0 0 0.00% 0.00%
B 5873 4479 9 9 0.15% 0.20%
C 5873 4479 0 0 0.00% 0.00%
D 5873 4479 21 21 0.36% 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 15 174 17825 149.72 583 574 115.2
A 0 226 5074 39.06 583 574 115.2
A 12 194 4182 31.31 583 574 115.2
B 0 189 31754 292.4 581 569 106.7
B 0 182 30874 284.15 581 569 106.7
B 0 198 30410 279.8 581 569 106.7
C 14 238 90449 693.81 565 571 129.5
C 0 207 51948 396.6 565 571 129.5
C 7 247 34709 263.53 565 571 129.5
D 12 110 96770 644.84 570 560 149.2
D 10 70 80762 537.55 570 560 149.2
D 1 52 66354 440.98 570 560 149.2

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