ASTROSAT CZTI

Data Quality Report

Orbit 06402

Creation date: 2024-06-27T15:06:29.786951
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/AS1C02_017T01_9000000848_06402cztM0_level2.evt modeM0/AS1C02_017T01_9000000848_06402cztM0_level2_quad_clean.evt
Size (bytes)219,265,92066,499,200
Size209.1 MB 63.4 MB
Events in quadrant A1,588,068443,498
Events in quadrant B1,679,112448,684
Events in quadrant C1,483,178449,135
Events in quadrant D1,655,366429,566

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068970
B071690
C068620
D072320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A342640.116754%
B342660.175131%
C342610.029189%
D342660.175131%

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 3426 3426 0 0 0.00% 0.00%
B 3426 3426 2 2 0.06% 0.06%
C 3426 3426 0 0 0.00% 0.00%
D 3426 3426 6 6 0.18% 0.18%

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 8 15 44576 545.39 395 388 81.0
A 15 174 14993 180.26 395 388 81.0
A 15 234 6391 74.09 395 388 81.0
B 4 81 40226 523.29 395 386 76.1
B 15 204 32297 419.14 395 386 76.1
B 0 214 24573 317.69 395 386 76.1
C 13 61 3118 31.5 379 381 86.9
C 1 16 2510 24.5 379 381 86.9
C 3 202 999 7.11 379 381 86.9
D 2 152 63244 662.93 382 370 94.8
D 11 241 49867 521.89 382 370 94.8
D 5 97 17657 182.27 382 370 94.8

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