ASTROSAT CZTI

Data Quality Report

Orbit 33999

Creation date: 2024-06-27T20:55:12.691156
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/AS1A11_106T03_9000004864_33999cztM0_level2.evt modeM0/AS1A11_106T03_9000004864_33999cztM0_level2_quad_clean.evt
Size (bytes)488,825,28076,109,760
Size466.2 MB 72.6 MB
Events in quadrant A2,558,445488,504
Events in quadrant B3,056,194498,081
Events in quadrant C3,913,219475,104
Events in quadrant D4,895,963450,435

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113573
B0127752
C0150572
D0185002

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A560470.124911%
B5604631.124197%
C56042233.979300%
D56042163.854390%

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 7337 5605 2 2 0.03% 0.04%
B 7337 5605 40 40 0.55% 0.71%
C 7337 5605 225 225 3.07% 4.01%
D 7337 5605 182 182 2.48% 3.25%

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 15 169 22088 166.81 647 635 128.6
A 10 83 16128 120.46 647 635 128.6
A 13 6 14419 107.18 647 635 128.6
B 5 172 145516 1191.45 644 628 121.6
B 0 190 120565 986.27 644 628 121.6
B 15 201 51738 420.29 644 628 121.6
C 4 254 454013 3205.61 617 623 141.4
C 9 69 372393 2628.53 617 623 141.4
C 15 214 240524 1696.18 617 623 141.4
D 8 195 1371188 9072.34 614 599 151.1
D 13 249 521037 3444.94 614 599 151.1
D 12 6 131586 867.04 614 599 151.1

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