ASTROSAT CZTI

Data Quality Report

Orbit 03762

Creation date: 2024-06-27T14:33:20.702257
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_248T01_9000000486_03762cztM0_level2.evt modeM0/AS1G05_248T01_9000000486_03762cztM0_level2_quad_clean.evt
Size (bytes)535,440,96061,637,760
Size510.6 MB 58.8 MB
Events in quadrant A3,788,399359,624
Events in quadrant B4,159,706364,574
Events in quadrant C3,003,659359,228
Events in quadrant D4,832,635338,237

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151413
B0165282
C0131122
D0184542

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63652143.362137%
B63652113.315004%
C6365450.706991%
D63651802.827965%

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 7610 6365 104 104 1.37% 1.63%
B 7610 6365 86 86 1.13% 1.35%
C 7610 6366 0 0 0.00% 0.00%
D 7610 6365 102 102 1.34% 1.60%

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 0 118 352818 2192.94 794 778 160.5
A 3 1 191080 1185.43 794 778 160.5
A 13 251 112059 693.19 794 778 160.5
B 5 70 413560 2713.71 804 787 152.1
B 15 204 381792 2504.86 804 787 152.1
B 0 244 138248 903.72 804 787 152.1
C 13 61 6579 32.52 766 770 178.6
C 7 221 3855 17.27 766 770 178.6
C 1 16 2261 8.35 766 770 178.6
D 1 20 1485503 7746.89 757 739 191.7
D 8 112 124652 646.53 757 739 191.7
D 13 239 107982 559.55 757 739 191.7

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
Veto Counter