ASTROSAT CZTI

Data Quality Report

Orbit 03445

Creation date: 2024-06-27T14:29:06.693969
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/AS1G05_167T01_9000000456_03445cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03445cztM0_level2_quad_clean.evt
Size (bytes)442,627,20090,060,480
Size422.1 MB 85.9 MB
Events in quadrant A2,845,332588,303
Events in quadrant B3,247,408591,777
Events in quadrant C3,972,441571,078
Events in quadrant D2,940,120565,148

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122252
B0134351
C0154951
D0127311

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5888330.560462%
B5888621.052989%
C58883295.587636%
D5888721.222826%

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 7233 5890 0 0 0.00% 0.00%
B 7233 5890 2 2 0.03% 0.03%
C 7233 5890 232 232 3.21% 3.94%
D 7233 5890 38 38 0.53% 0.65%

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 31 21492 138.68 731 718 149.8
A 12 194 7609 46.0 731 718 149.8
A 0 226 7324 44.1 731 718 149.8
B 15 204 322651 2267.59 746 733 142.0
B 0 229 14755 98.77 746 733 142.0
B 15 255 13838 92.31 746 733 142.0
C 7 220 1166155 7079.08 713 721 164.6
C 13 61 6098 32.66 713 721 164.6
C 1 192 5756 30.58 713 721 164.6
D 13 223 171420 993.22 714 696 171.9
D 5 233 16780 93.57 714 696 171.9
D 9 85 12366 67.89 714 696 171.9

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