ASTROSAT CZTI

Data Quality Report

Orbit 14035

Creation date: 2024-06-27T16:49:28.027292
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_002T01_9000002072_14035cztM0_level2.evt modeM0/AS1G08_002T01_9000002072_14035cztM0_level2_quad_clean.evt
Size (bytes)469,235,52073,503,360
Size447.5 MB 70.1 MB
Events in quadrant A3,279,868439,991
Events in quadrant B3,311,293444,759
Events in quadrant C3,324,977442,014
Events in quadrant D3,838,491430,632

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139633
B0139752
C0139582
D0157202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6718841.250372%
B6718841.250372%
C6718670.997321%
D67181251.860673%

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 7714 6720 0 0 0.00% 0.00%
B 7714 6720 0 0 0.00% 0.00%
C 7714 6720 0 0 0.00% 0.00%
D 7714 6720 40 40 0.52% 0.60%

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 1 162 13038 70.84 844 827 172.4
A 15 69 10365 55.33 844 827 172.4
A 0 226 7372 37.97 844 827 172.4
B 12 111 19770 117.72 836 815 161.0
B 11 111 16984 100.42 836 815 161.0
B 14 111 14386 84.28 836 815 161.0
C 3 233 133583 703.87 815 821 188.6
C 14 220 12545 62.16 815 821 188.6
C 13 61 5842 26.62 815 821 188.6
D 1 52 583358 3012.12 808 788 193.4
D 8 195 79480 406.87 808 788 193.4
D 2 152 37842 191.58 808 788 193.4

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