ASTROSAT CZTI

Data Quality Report

Orbit 03589

Creation date: 2024-06-27T14:31:21.024588
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_246T03_9000000470_03589cztM0_level2.evt modeM0/AS1G05_246T03_9000000470_03589cztM0_level2_quad_clean.evt
Size (bytes)424,998,72087,514,560
Size405.3 MB 83.5 MB
Events in quadrant A3,105,597564,894
Events in quadrant B3,334,546568,174
Events in quadrant C2,837,947562,725
Events in quadrant D3,191,252541,570

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130832
B0137441
C0122591
D0134641

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59041141.930894%
B59041011.710705%
C5904831.405827%
D59042103.556911%

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 7174 5904 12 12 0.17% 0.20%
B 7174 5904 2 2 0.03% 0.03%
C 7174 5904 2 2 0.03% 0.03%
D 7174 5904 114 114 1.59% 1.93%

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 13 164 125817 838.36 730 713 149.2
A 8 15 88034 585.16 730 713 149.2
A 0 50 60549 400.98 730 713 149.2
B 15 204 283488 2007.9 729 712 140.8
B 4 81 97734 688.92 729 712 140.8
B 0 243 53158 372.4 729 712 140.8
C 2 53 20804 122.08 712 716 164.5
C 1 16 20743 121.71 712 716 164.5
C 14 48 6658 36.11 712 716 164.5
D 13 223 251843 1510.01 704 684 166.3
D 14 34 225571 1352.06 704 684 166.3
D 1 84 15583 89.58 704 684 166.3

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