ASTROSAT CZTI

Data Quality Report

Orbit 46310

Creation date: 2024-06-27T23:21:33.309563
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/AS1T05_200T01_9000006196_46310cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46310cztM0_level2_quad_clean.evt
Size (bytes)475,502,400110,036,160
Size453.5 MB 104.9 MB
Events in quadrant A6,212,661730,043
Events in quadrant B4,373,274747,417
Events in quadrant C3,203,424714,099
Events in quadrant D3,273,227656,430

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228202
B0174922
C0146902
D0150162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69441762.534562%
B69442303.312212%
C6943871.253061%
D6943881.267464%

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 7799 6945 7 7 0.09% 0.10%
B 7799 6945 104 104 1.33% 1.50%
C 7798 6944 31 31 0.40% 0.45%
D 7798 6944 28 28 0.36% 0.40%

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 10 83 3168570 19862.76 769 753 159.5
A 15 223 31796 194.64 769 753 159.5
A 9 191 22416 135.83 769 753 159.5
B 3 112 632417 4137.44 768 745 152.7
B 4 171 269037 1757.31 768 745 152.7
B 5 172 194693 1270.35 768 745 152.7
C 12 249 139043 761.85 766 769 181.5
C 1 3 73507 400.77 766 769 181.5
C 13 61 5199 24.41 766 769 181.5
D 1 52 161736 842.35 758 733 191.1
D 13 249 66489 344.03 758 733 191.1
D 13 171 50998 262.98 758 733 191.1

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