ASTROSAT CZTI

Data Quality Report

Orbit 40194

Creation date: 2024-06-27T22:13:26.814135
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/AS1A12_053T01_9000005530_40194cztM0_level2.fits modeM0/AS1A12_053T01_9000005530_40194cztM0_level2_quad_clean.evt
Size (bytes)124,122,24025,153,920
Size118.4 MB 24.0 MB
Events in quadrant A829,238164,424
Events in quadrant B906,772169,467
Events in quadrant C1,410,004161,010
Events in quadrant D1,320,175147,716

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033961
B037950
C052830
D050700

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A161960.370599%
B1619160.988264%
C1619915.620754%
D1619885.435454%

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 1619 1619 3 3 0.19% 0.19%
B 1619 1619 8 8 0.49% 0.49%
C 1619 1619 104 104 6.42% 6.42%
D 1619 1619 69 69 4.26% 4.26%

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 112914 3066.99 171 167 36.8
A 13 248 24588 664.31 171 167 36.8
A 2 79 13732 369.0 171 167 36.8
B 12 18 58469 1707.84 169 166 34.1
B 0 230 45542 1329.18 169 166 34.1
B 5 255 41799 1219.53 169 166 34.1
C 4 254 673705 17030.92 163 163 39.5
C 15 214 65869 1661.42 163 163 39.5
C 14 254 25257 634.52 163 163 39.5
D 12 227 511106 12026.32 165 160 42.5
D 6 239 90740 2132.01 165 160 42.5
D 13 249 32825 768.85 165 160 42.5

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