ASTROSAT CZTI

Data Quality Report

Orbit 43109

Creation date: 2024-06-27T22:48:08.446291
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/AS1T05_153T01_9000005848_43109cztM0_level2.fits modeM0/AS1T05_153T01_9000005848_43109cztM0_level2_quad_clean.evt
Size (bytes)224,637,12062,110,080
Size214.2 MB 59.2 MB
Events in quadrant A2,662,192406,392
Events in quadrant B1,667,323425,866
Events in quadrant C1,777,136406,279
Events in quadrant D1,909,660372,441

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103650
B077630
C078700
D085630

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A38181904.976427%
B381950.130924%
C381910.026185%
D3819431.125949%

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 3818 3818 138 138 3.61% 3.61%
B 3819 3819 1 1 0.03% 0.03%
C 3819 3819 0 0 0.00% 0.00%
D 3819 3819 41 41 1.07% 1.07%

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 15 222 497609 5932.89 401 392 83.8
A 10 83 336236 4007.35 401 392 83.8
A 15 237 274443 3270.03 401 392 83.8
B 0 229 27040 341.38 403 391 78.1
B 5 255 25752 324.88 403 391 78.1
B 3 112 13796 171.72 403 391 78.1
C 15 214 169642 1828.95 392 394 92.5
C 1 226 31549 336.67 392 394 92.5
C 0 239 21733 230.6 392 394 92.5
D 1 52 319931 3381.69 393 382 94.5
D 12 233 21946 228.2 393 382 94.5
D 2 234 17894 185.32 393 382 94.5

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