ASTROSAT CZTI

Data Quality Report

Orbit 05908

Creation date: 2024-06-27T15:00:43.099259
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_174T01_9000000766_05908cztM0_level2.evt modeM0/AS1A02_174T01_9000000766_05908cztM0_level2_quad_clean.evt
Size (bytes)505,255,68070,948,800
Size481.8 MB 67.7 MB
Events in quadrant A3,132,180428,530
Events in quadrant B3,642,181422,101
Events in quadrant C4,371,581422,066
Events in quadrant D3,696,755404,578

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152851218
B0165081292
C0192191546
D0170941434

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015719
B015511
C015915
D015816

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67571191.761137%
B67502443.614815%
C67343765.583606%
D67401482.195846%

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 9532 6855 0 0 0.00% 0.00%
B 9532 6843 64 64 0.67% 0.94%
C 9532 6835 215 215 2.26% 3.15%
D 9532 6843 49 49 0.51% 0.72%

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 12 194 7923 41.98 813 794 169.8
A 0 226 7757 41.0 813 794 169.8
A 7 16 5791 29.42 813 794 169.8
B 15 255 255629 1605.2 815 796 158.8
B 15 204 89837 560.87 815 796 158.8
B 0 214 75303 469.32 815 796 158.8
C 9 247 1352036 7456.09 773 777 181.2
C 13 61 6016 28.91 773 777 181.2
C 4 239 2478 9.39 773 777 181.2
D 2 152 392654 2018.76 784 757 194.1
D 8 195 97724 499.5 784 757 194.1
D 2 63 83219 424.78 784 757 194.1

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