ASTROSAT CZTI

Data Quality Report

Orbit 10378

Creation date: 2024-06-27T15:58:37.468890
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/AS1A03_073T01_9000001498_10378cztM0_level2.evt modeM0/AS1A03_073T01_9000001498_10378cztM0_level2_quad_clean.evt
Size (bytes)451,497,60074,574,720
Size430.6 MB 71.1 MB
Events in quadrant A3,187,987455,662
Events in quadrant B3,406,761460,776
Events in quadrant C3,132,387466,597
Events in quadrant D3,524,112441,033

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131723
B0137617
C0130384
D0142592

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6212681.094656%
B62101362.190016%
C6211560.901626%
D6212891.432711%

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 7542 6212 1 1 0.01% 0.02%
B 7542 6212 33 33 0.44% 0.53%
C 7542 6212 1 1 0.01% 0.02%
D 7542 6212 32 32 0.42% 0.52%

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 3 1 20109 119.97 814 799 161.0
A 8 15 18246 108.4 814 799 161.0
A 5 16 15843 93.47 814 799 161.0
B 4 239 197629 1313.1 812 796 149.9
B 0 214 21389 137.38 812 796 149.9
B 0 197 16081 101.97 812 796 149.9
C 14 234 13393 69.51 799 805 181.1
C 13 61 6010 28.74 799 805 181.1
C 14 67 2477 9.23 799 805 181.1
D 2 33 213951 1147.08 791 771 185.8
D 8 195 110225 588.95 791 771 185.8
D 1 20 89711 478.57 791 771 185.8

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