ASTROSAT CZTI

Data Quality Report

Orbit 24370

Creation date: 2024-06-27T19:05:16.571048
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/AS1A07_145T01_9000003594_24370cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24370cztM0_level2_quad_clean.evt
Size (bytes)4,194,512,640584,965,440
Size3.9 GB 557.9 MB
Events in quadrant A22,039,0643,662,526
Events in quadrant B22,687,7773,767,894
Events in quadrant C27,299,7963,629,609
Events in quadrant D51,850,1333,441,454

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0961838
B0972998
C01109178
D01862438

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0510
C0510
D0510

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09480
B09480
C09480
D09480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A468636491.384888%
B468637681.638820%
C4686313652.912746%
D468621048022.363535%

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 51553 46871 0 0 0.00% 0.00%
B 51553 46871 18 18 0.03% 0.04%
C 51553 46871 334 334 0.65% 0.71%
D 51552 46870 8973 8973 17.41% 19.14%

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 13 254 69489 55.88 5714 5594 1143.5
A 3 137 53420 41.82 5714 5594 1143.5
A 0 226 48582 37.59 5714 5594 1143.5
B 12 111 135697 120.28 5705 5562 1081.9
B 0 230 121860 107.49 5705 5562 1081.9
B 11 111 121478 107.14 5705 5562 1081.9
C 7 247 4903866 3855.5 5480 5514 1270.5
C 14 238 871319 681.48 5480 5514 1270.5
C 2 16 100518 74.78 5480 5514 1270.5
D 9 35 22356851 17740.85 5181 5024 1259.9
D 7 238 3026173 2397.91 5181 5024 1259.9
D 1 52 2838986 2249.34 5181 5024 1259.9

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