ASTROSAT CZTI

Data Quality Report

Orbit 17012

Creation date: 2024-06-27T17:30:47.095097
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/AS1A05_206T01_9000002528_17012cztM0_level2.evt modeM0/AS1A05_206T01_9000002528_17012cztM0_level2_quad_clean.evt
Size (bytes)514,506,240100,028,160
Size490.7 MB 95.4 MB
Events in quadrant A3,387,970636,106
Events in quadrant B4,138,198640,162
Events in quadrant C3,562,295625,828
Events in quadrant D3,996,092617,341

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151551
B0169501
C0151821
D0166951

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73221872.553947%
B73223134.274788%
C73221982.704179%
D73221922.622234%

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 7413 7324 0 0 0.00% 0.00%
B 7413 7324 69 69 0.93% 0.94%
C 7413 7324 1 1 0.01% 0.01%
D 7413 7324 41 41 0.55% 0.56%

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 15 174 29814 163.91 867 844 176.7
A 12 189 22949 125.07 867 844 176.7
A 0 226 7754 39.1 867 844 176.7
B 3 64 271509 1622.39 863 839 166.8
B 7 220 161159 960.95 863 839 166.8
B 15 33 70828 419.51 863 839 166.8
C 3 233 145184 732.5 837 839 197.1
C 14 238 128105 645.83 837 839 197.1
C 0 207 9005 41.44 837 839 197.1
D 1 52 583716 2776.09 854 826 210.0
D 5 222 85128 401.5 854 826 210.0
D 10 70 37703 175.63 854 826 210.0

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