ASTROSAT CZTI

Data Quality Report

Orbit 05109

Creation date: 2024-06-27T14:51:23.793526
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_137T01_9000000646_05109cztM0_level2.evt modeM0/AS1G05_137T01_9000000646_05109cztM0_level2_quad_clean.evt
Size (bytes)495,290,88079,341,120
Size472.3 MB 75.7 MB
Events in quadrant A4,118,373507,521
Events in quadrant B3,321,539507,942
Events in quadrant C2,814,939495,129
Events in quadrant D4,332,834467,805

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161092
B0136321
C0124641
D0168561

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60703966.523888%
B60701582.602965%
C6070761.252059%
D60703986.556837%

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 7324 6070 211 211 2.88% 3.48%
B 7325 6071 36 36 0.49% 0.59%
C 7325 6071 0 0 0.00% 0.00%
D 7325 6071 278 278 3.80% 4.58%

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 13 251 1255724 8353.92 740 725 150.2
A 0 50 9018 55.2 740 725 150.2
A 0 226 7407 44.48 740 725 150.2
B 10 16 231958 1602.64 754 737 144.3
B 4 80 122710 845.42 754 737 144.3
B 4 52 15451 101.99 754 737 144.3
C 13 61 5888 31.29 719 724 165.0
C 1 16 4077 20.32 719 724 165.0
C 12 4 2521 10.89 719 724 165.0
D 12 227 639312 3694.86 712 690 172.8
D 12 22 346145 1998.69 712 690 172.8
D 13 239 160026 921.87 712 690 172.8

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