ASTROSAT CZTI

Data Quality Report

Orbit 46412

Creation date: 2024-06-27T23:22:53.561980
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/AS1A13_070T04_9000006204_46412cztM0_level2.fits modeM0/AS1A13_070T04_9000006204_46412cztM0_level2_quad_clean.evt
Size (bytes)434,108,160108,388,800
Size414.0 MB 103.4 MB
Events in quadrant A6,078,012711,648
Events in quadrant B3,114,967741,066
Events in quadrant C2,896,665710,978
Events in quadrant D3,456,332648,703

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226291
B0140441
C0136471
D0152781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67361071.588480%
B6737610.905448%
C6736130.192993%
D6736931.380641%

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 7696 6737 8 8 0.10% 0.12%
B 7697 6738 18 18 0.23% 0.27%
C 7696 6737 0 0 0.00% 0.00%
D 7696 6737 63 63 0.82% 0.94%

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 3160395 20563.05 734 716 153.7
A 13 248 59371 381.72 734 716 153.7
A 13 254 12013 73.52 734 716 153.7
B 5 172 75606 512.7 740 717 146.1
B 5 32 30978 207.17 740 717 146.1
B 15 201 21652 143.32 740 717 146.1
C 14 254 21744 122.93 726 729 171.0
C 3 233 15205 84.68 726 729 171.0
C 15 208 7668 40.59 726 729 171.0
D 1 52 271437 1490.75 719 695 181.6
D 5 32 151057 827.92 719 695 181.6
D 11 224 64289 350.16 719 695 181.6

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