ASTROSAT CZTI

Data Quality Report

Orbit 29313

Creation date: 2024-06-27T20:02:53.999351
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/AS1A10_083T01_9000004214_29313cztM0_level2.evt modeM0/AS1A10_083T01_9000004214_29313cztM0_level2_quad_clean.evt
Size (bytes)875,839,68080,858,880
Size835.3 MB 77.1 MB
Events in quadrant A3,587,083549,604
Events in quadrant B4,122,571554,936
Events in quadrant C12,691,252413,885
Events in quadrant D5,714,686505,194

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142481
B0159421
C0418261
D0213961

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60741512.486006%
B60753014.954733%
C6075463676.312757%
D60753505.761317%

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 7304 6075 58 58 0.79% 0.95%
B 7305 6076 166 166 2.27% 2.73%
C 7305 6076 3528 3528 48.30% 58.06%
D 7305 6076 271 271 3.71% 4.46%

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 0 13 453451 2836.92 802 789 159.6
A 14 235 16079 95.83 802 789 159.6
A 15 174 14308 84.73 802 789 159.6
B 5 255 666112 4611.76 780 765 144.3
B 5 172 190044 1311.96 780 765 144.3
B 0 190 168622 1163.48 780 765 144.3
C 3 233 10300319 77091.46 583 586 133.6
C 14 238 95556 710.83 583 586 133.6
C 2 114 11642 82.75 583 586 133.6
D 8 195 968425 5423.2 767 749 178.4
D 1 52 844093 4726.4 767 749 178.4
D 7 80 484206 2709.47 767 749 178.4

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