ASTROSAT CZTI

Data Quality Report

Orbit 14445

Creation date: 2024-06-27T16:55:16.228199
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/AS1G08_025T01_9000002130_14445cztM0_level2.evt modeM0/AS1G08_025T01_9000002130_14445cztM0_level2_quad_clean.evt
Size (bytes)519,782,400108,740,160
Size495.7 MB 103.7 MB
Events in quadrant A3,214,438738,900
Events in quadrant B4,887,187694,274
Events in quadrant C3,631,037725,943
Events in quadrant D3,589,471702,234

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133773
B0185212
C0147782
D0147862

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6186290.468801%
B618664710.459101%
C6186390.630456%
D61861131.826705%

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 7567 6188 3 3 0.04% 0.05%
B 7567 6188 498 498 6.58% 8.05%
C 7567 6188 0 0 0.00% 0.00%
D 7567 6187 83 83 1.10% 1.34%

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 12 189 69784 430.36 798 783 160.3
A 8 15 53235 327.15 798 783 160.3
A 4 2 15032 88.87 798 783 160.3
B 10 16 1768973 12548.2 757 740 140.9
B 3 209 55992 392.09 757 740 140.9
B 4 142 26480 182.66 757 740 140.9
C 3 233 594577 3329.76 778 783 178.3
C 13 61 5539 26.67 778 783 178.3
C 10 22 3711 16.42 778 783 178.3
D 10 199 253736 1243.61 760 747 203.4
D 13 122 214825 1052.34 760 747 203.4
D 2 120 110467 539.35 760 747 203.4

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