ASTROSAT CZTI

Data Quality Report

Orbit 32186

Creation date: 2024-06-27T20:37:21.465840
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/AS1A09_131T01_9000004690_32186cztM0_level2.evt modeM0/AS1A09_131T01_9000004690_32186cztM0_level2_quad_clean.evt
Size (bytes)1,124,807,040179,046,720
Size1.0 GB 170.8 MB
Events in quadrant A5,795,9691,172,746
Events in quadrant B10,235,1001,157,678
Events in quadrant C7,747,8691,121,950
Events in quadrant D9,447,9011,110,575

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02540
B02540
C02540
D02540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0252633
B0396112
C0310542
D0366502

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A124291200.965484%
B124295064.071124%
C124296415.157293%
D124293522.832086%

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 13589 12431 0 0 0.00% 0.00%
B 13589 12429 167 167 1.23% 1.34%
C 13589 12431 13 13 0.10% 0.10%
D 13589 12431 198 198 1.46% 1.59%

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 6 31231 99.99 1486 1453 297.8
A 13 254 24128 76.14 1486 1453 297.8
A 12 96 15858 48.37 1486 1453 297.8
B 6 159 3466508 12501.25 1454 1416 277.2
B 5 172 602793 2169.63 1454 1416 277.2
B 0 190 186409 667.41 1454 1416 277.2
C 3 233 1384486 4223.71 1400 1407 327.5
C 14 238 351768 1069.95 1400 1407 327.5
C 0 10 309354 940.42 1400 1407 327.5
D 8 195 2675470 7850.6 1431 1389 340.6
D 12 218 532960 1560.59 1431 1389 340.6
D 14 52 237431 692.97 1431 1389 340.6

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