ASTROSAT CZTI

Data Quality Report

Orbit 04138

Creation date: 2024-06-27T14:39:51.674674
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/AS1G05_245T01_9000000532_04138cztM0_level2.evt modeM0/AS1G05_245T01_9000000532_04138cztM0_level2_quad_clean.evt
Size (bytes)200,698,56039,516,480
Size191.4 MB 37.7 MB
Events in quadrant A1,417,097255,248
Events in quadrant B1,484,018252,984
Events in quadrant C1,391,350248,836
Events in quadrant D1,591,366237,094

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A059261
B061231
C057921
D065391

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A282340.141693%
B282340.141693%
C282310.035423%
D2823441.558626%

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 2823 2823 2 2 0.07% 0.07%
B 2823 2823 0 0 0.00% 0.00%
C 2823 2823 0 0 0.00% 0.00%
D 2823 2823 34 34 1.20% 1.20%

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 0 50 21496 286.94 362 355 73.7
A 12 194 3739 45.93 362 355 73.7
A 0 226 3586 43.85 362 355 73.7
B 10 16 21450 303.65 363 357 69.5
B 15 204 21267 301.01 363 357 69.5
B 0 183 11698 163.26 363 357 69.5
C 10 65 3488 37.85 355 359 82.7
C 13 61 2914 30.91 355 359 82.7
C 3 202 867 6.14 355 359 82.7
D 10 172 211218 2490.5 352 344 84.7
D 13 238 16040 185.38 352 344 84.7
D 2 63 11387 130.42 352 344 84.7

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