ASTROSAT CZTI

Data Quality Report

Orbit 09903

Creation date: 2024-06-27T15:52:08.165671
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/AS1G07_046T01_9000001408_09903cztM0_level2.evt modeM0/AS1G07_046T01_9000001408_09903cztM0_level2_quad_clean.evt
Size (bytes)271,872,00042,171,840
Size259.3 MB 40.2 MB
Events in quadrant A1,847,017247,866
Events in quadrant B1,888,301254,368
Events in quadrant C1,814,159245,898
Events in quadrant D2,396,655231,919

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084581
B085091
C084651
D099551

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A420840.095057%
B420830.071293%
C420820.047529%
D4208270.641635%

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 4208 4208 0 0 0.00% 0.00%
B 4208 4208 0 0 0.00% 0.00%
C 4208 4208 1 1 0.02% 0.02%
D 4208 4208 10 10 0.24% 0.24%

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 15 239 5827 54.31 478 468 98.7
A 0 226 4349 39.33 478 468 98.7
A 12 194 3658 32.33 478 468 98.7
B 12 111 11117 113.95 481 470 93.4
B 11 111 9254 94.01 481 470 93.4
B 10 252 7861 79.1 481 470 93.4
C 9 221 4419 36.14 463 466 109.4
C 13 61 3493 27.67 463 466 109.4
C 14 67 2355 17.27 463 466 109.4
D 2 16 298896 2498.84 453 442 119.4
D 8 195 215257 1798.56 453 442 119.4
D 9 85 71891 598.21 453 442 119.4

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