ASTROSAT CZTI

Data Quality Report

Orbit 05268

Creation date: 2024-06-27T14:53:19.739922
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_240T02_9000000670_05268cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05268cztM0_level2_quad_clean.evt
Size (bytes)533,894,40088,021,440
Size509.2 MB 83.9 MB
Events in quadrant A3,997,884557,842
Events in quadrant B3,198,641578,266
Events in quadrant C3,119,569562,690
Events in quadrant D5,404,884506,174

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162483
B0137672
C0136052
D0206832

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66041281.938219%
B6604420.635978%
C6604170.257420%
D66046339.585100%

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 7904 6605 73 73 0.92% 1.11%
B 7904 6605 0 0 0.00% 0.00%
C 7904 6605 1 1 0.01% 0.02%
D 7904 6605 491 491 6.21% 7.43%

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 953343 6007.42 788 769 158.6
A 0 50 10386 60.65 788 769 158.6
A 12 194 7643 43.35 788 769 158.6
B 15 204 21330 134.76 810 791 152.4
B 12 111 14119 87.45 810 791 152.4
B 15 54 14003 86.69 810 791 152.4
C 1 16 29114 154.28 789 795 183.6
C 12 4 7990 39.2 789 795 183.6
C 13 61 6538 31.29 789 795 183.6
D 11 145 2417339 13402.43 745 724 180.3
D 2 136 65380 358.58 745 724 180.3
D 2 14 31588 171.17 745 724 180.3

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