ASTROSAT CZTI

Data Quality Report

Orbit 07816

Creation date: 2024-06-27T15:24:22.045888
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/AS1G06_032T01_9000001074_07816cztM0_level2.evt modeM0/AS1G06_032T01_9000001074_07816cztM0_level2_quad_clean.evt
Size (bytes)284,506,56063,308,160
Size271.3 MB 60.4 MB
Events in quadrant A1,991,422400,377
Events in quadrant B2,101,168421,880
Events in quadrant C2,010,329407,708
Events in quadrant D2,216,651381,264

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087901
B089881
C088231
D095071

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A434750.115022%
B4347110.253048%
C434750.115022%
D4347370.851162%

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 4347 4347 0 0 0.00% 0.00%
B 4347 4347 4 4 0.09% 0.09%
C 4347 4347 0 0 0.00% 0.00%
D 4346 4346 28 28 0.64% 0.64%

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 13 14 24412 232.64 510 499 102.8
A 3 1 5886 52.41 510 499 102.8
A 0 226 4728 41.14 510 499 102.8
B 0 214 30986 312.0 520 508 97.7
B 4 239 19280 192.16 520 508 97.7
B 15 204 14204 140.2 520 508 97.7
C 1 16 9054 72.19 512 517 118.3
C 13 61 3971 29.21 512 517 118.3
C 12 4 3026 21.22 512 517 118.3
D 2 152 117515 964.66 502 487 121.3
D 7 71 89958 737.51 502 487 121.3
D 12 233 43628 355.61 502 487 121.3

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