ASTROSAT CZTI

Data Quality Report

Orbit 04008

Creation date: 2024-06-27T14:36:15.372521
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_247T01_9000000512_04008cztM0_level2.evt modeM0/AS1G05_247T01_9000000512_04008cztM0_level2_quad_clean.evt
Size (bytes)507,680,640104,808,960
Size484.2 MB 100.0 MB
Events in quadrant A3,393,840700,028
Events in quadrant B3,055,923711,772
Events in quadrant C2,765,252693,099
Events in quadrant D5,739,649636,373

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143783
B0131702
C0126692
D0213782

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62001602.580645%
B6200310.500000%
C6200220.354839%
D62004397.080645%

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 7465 6201 82 82 1.10% 1.32%
B 7465 6201 0 0 0.00% 0.00%
C 7465 6201 2 2 0.03% 0.03%
D 7465 6201 506 506 6.78% 8.16%

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 50 479896 3280.75 722 709 146.1
A 0 118 52845 356.95 722 709 146.1
A 3 1 36408 244.41 722 709 146.1
B 15 204 123397 892.23 737 721 137.5
B 14 167 20079 140.79 737 721 137.5
B 4 81 18314 127.96 737 721 137.5
C 12 4 16105 96.16 699 702 160.2
C 9 144 14935 88.85 699 702 160.2
C 13 61 5948 32.75 699 702 160.2
D 9 82 2320444 14403.02 671 652 161.1
D 8 112 741176 4597.73 671 652 161.1
D 2 232 63586 390.74 671 652 161.1

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