ASTROSAT CZTI

Data Quality Report

Orbit 47579

Creation date: 2024-07-16T01:32:19.387791
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/AS1A13_080T03_9000006336_47579cztM0_level2.fits modeM0/AS1A13_080T03_9000006336_47579cztM0_level2_quad_clean.evt
Size (bytes)348,655,68042,894,720
Size332.5 MB 40.9 MB
Events in quadrant A3,627,316302,362
Events in quadrant B1,540,417337,805
Events in quadrant C1,349,698331,712
Events in quadrant D6,157,891116,173

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128941
B065041
C060771
D0203383

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A295240713.787263%
B2952792.676152%
C295290.304878%
D2951186663.232802%

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 3842 2952 155 155 4.03% 5.25%
B 3842 2952 5 5 0.13% 0.17%
C 3842 2953 0 0 0.00% 0.00%
D 3841 2951 1846 1846 48.06% 62.56%

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 10 83 1845601 25979.33 339 330 71.0
A 9 191 449855 6328.8 339 330 71.0
A 0 243 11469 156.82 339 330 71.0
B 0 190 93535 1357.87 346 336 68.6
B 5 255 34288 494.67 346 336 68.6
B 0 198 15881 226.48 346 336 68.6
C 3 233 12623 150.28 342 343 81.7
C 13 61 2338 24.41 342 343 81.7
C 14 254 2320 24.19 342 343 81.7
D 2 165 5052178 94282.92 207 199 53.6
D 2 249 149825 2792.41 207 199 53.6
D 8 176 82221 1530.74 207 199 53.6

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