ASTROSAT CZTI

Data Quality Report

Orbit 24534

Creation date: 2024-06-27T19:07:00.441055
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/AS1T03_183T01_9000003606_24534cztM0_level2.evt modeM0/AS1T03_183T01_9000003606_24534cztM0_level2_quad_clean.evt
Size (bytes)496,319,040127,523,520
Size473.3 MB 121.6 MB
Events in quadrant A2,974,041912,565
Events in quadrant B3,567,235914,923
Events in quadrant C2,920,448854,049
Events in quadrant D5,182,616782,223

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123792
B0141571
C0122111
D0193331

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5700771.350877%
B57012744.806174%
C57011061.859323%
D57015669.928083%

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 7010 5701 0 0 0.00% 0.00%
B 7011 5702 105 105 1.50% 1.84%
C 7011 5702 0 0 0.00% 0.00%
D 7011 5702 423 423 6.03% 7.42%

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 14 111 15181 94.6 768 755 152.5
A 13 254 9012 54.15 768 755 152.5
A 0 226 6745 39.28 768 755 152.5
B 3 64 593193 4271.27 755 741 138.7
B 3 209 16469 113.39 755 741 138.7
B 12 111 15490 106.33 755 741 138.7
C 14 238 118145 723.52 713 721 162.3
C 2 16 14411 84.35 713 721 162.3
C 13 61 4994 26.33 713 721 162.3
D 1 52 2111031 12721.05 688 668 165.9
D 12 218 335880 2020.62 688 668 165.9
D 9 1 81088 484.76 688 668 165.9

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