ASTROSAT CZTI

Data Quality Report

Orbit 11766

Creation date: 2024-06-27T16:18:00.633618
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/AS1A04_231T01_9000001740_11766cztM0_level2.evt modeM0/AS1A04_231T01_9000001740_11766cztM0_level2_quad_clean.evt
Size (bytes)608,184,000106,021,440
Size580.0 MB 101.1 MB
Events in quadrant A3,760,161693,686
Events in quadrant B4,413,355708,114
Events in quadrant C3,055,366722,717
Events in quadrant D6,754,317636,659

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154293
B0175062
C0132042
D0243522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6440630.978261%
B64403295.108696%
C644050.077640%
D64404356.754658%

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 7796 6442 5 5 0.06% 0.08%
B 7796 6442 213 213 2.73% 3.31%
C 7796 6442 0 0 0.00% 0.00%
D 7796 6442 555 555 7.12% 8.62%

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 8 15 398415 2562.21 773 760 155.2
A 1 162 112011 716.82 773 760 155.2
A 13 251 67531 430.23 773 760 155.2
B 4 239 730206 5055.65 777 758 144.3
B 10 16 240929 1664.57 777 758 144.3
B 15 204 169394 1168.78 777 758 144.3
C 13 61 5928 28.66 782 787 179.4
C 12 4 2728 10.82 782 787 179.4
C 3 202 2000 6.76 782 787 179.4
D 13 137 3053833 17120.8 746 724 178.3
D 1 52 362110 2026.53 746 724 178.3
D 8 195 150249 838.48 746 724 178.3

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