ASTROSAT CZTI

Data Quality Report

Orbit 47244

Creation date: 2024-06-27T23:33:19.786307
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/AS1C09_005T01_9000006304_47244cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47244cztM0_level2_quad_clean.evt
Size (bytes)498,144,960111,260,160
Size475.1 MB 106.1 MB
Events in quadrant A7,217,213731,104
Events in quadrant B3,377,381780,252
Events in quadrant C2,949,601750,922
Events in quadrant D4,392,124653,957

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260332
B0143932
C0133072
D0176184

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64903525.423729%
B6490600.924499%
C6490130.200308%
D64894066.256742%

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 7715 6491 159 159 2.06% 2.45%
B 7715 6491 20 20 0.26% 0.31%
C 7715 6491 0 0 0.00% 0.00%
D 7714 6490 364 364 4.72% 5.61%

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 3589367 23938.73 725 710 149.9
A 9 191 804865 5364.25 725 710 149.9
A 14 248 10538 65.56 725 710 149.9
B 0 200 286069 2012.55 737 713 141.8
B 0 190 75607 528.21 737 713 141.8
B 0 183 27218 186.93 737 713 141.8
C 14 254 28468 160.46 743 745 172.8
C 10 9 9069 48.18 743 745 172.8
C 12 2 5902 29.85 743 745 172.8
D 1 47 1098719 6151.51 720 699 178.5
D 12 1 366506 2049.39 720 699 178.5
D 2 37 69312 384.4 720 699 178.5

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