ASTROSAT CZTI

Data Quality Report

Orbit 47432

Creation date: 2024-07-06T02:51:04.677260
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_053T01_9000006326_47432cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47432cztM0_level2_quad_clean.evt
Size (bytes)465,396,480110,695,680
Size443.8 MB 105.6 MB
Events in quadrant A6,806,252722,601
Events in quadrant B3,324,696773,065
Events in quadrant C3,192,493732,565
Events in quadrant D3,404,634674,914

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243252
B0141762
C0140092
D0145422

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64354066.309246%
B64351011.569542%
C6435600.932401%
D6435490.761461%

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 7655 6436 140 140 1.83% 2.18%
B 7655 6436 53 53 0.69% 0.82%
C 7655 6436 29 29 0.38% 0.45%
D 7655 6436 23 23 0.30% 0.36%

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 3706311 24769.77 728 712 149.6
A 9 191 271762 1811.81 728 712 149.6
A 13 248 13545 85.78 728 712 149.6
B 5 32 236243 1680.11 736 715 140.2
B 0 190 51500 362.27 736 715 140.2
B 0 198 38665 270.71 736 715 140.2
C 12 2 254690 1504.55 721 721 168.8
C 0 207 95817 563.36 721 721 168.8
C 1 3 17162 97.4 721 721 168.8
D 2 165 268281 1478.86 719 694 180.9
D 11 192 142227 782.2 719 694 180.9
D 2 249 71548 391.58 719 694 180.9

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