ASTROSAT CZTI

Data Quality Report

Orbit 05588

Creation date: 2024-06-27T14:56:57.590635
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/AS1A02_081T01_9000000720_05588cztM0_level2.evt modeM0/AS1A02_081T01_9000000720_05588cztM0_level2_quad_clean.evt
Size (bytes)501,552,00080,933,760
Size478.3 MB 77.2 MB
Events in quadrant A2,813,649546,468
Events in quadrant B3,107,832543,455
Events in quadrant C2,753,900527,631
Events in quadrant D6,101,632408,706

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124962
B0131201
C0123971
D0224061

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6074681.119526%
B6074721.185380%
C6074570.938426%
D6074151324.909450%

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 7219 6076 1 1 0.01% 0.02%
B 7219 6076 8 8 0.11% 0.13%
C 7219 6076 0 0 0.00% 0.00%
D 7219 6076 1223 1223 16.94% 20.13%

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 0 50 23782 157.9 721 705 146.1
A 12 194 7182 44.32 721 705 146.1
A 0 226 7154 44.13 721 705 146.1
B 0 214 74009 532.78 726 709 137.6
B 15 204 62692 450.53 726 709 137.6
B 10 245 47242 338.23 726 709 137.6
C 13 61 5598 30.03 703 706 162.9
C 1 16 5147 27.26 703 706 162.9
C 8 222 2857 13.2 703 706 162.9
D 2 63 3126894 21194.73 607 589 147.5
D 2 136 206105 1393.29 607 589 147.5
D 10 15 143830 971.1 607 589 147.5

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