ASTROSAT CZTI

Data Quality Report

Orbit 14585

Creation date: 2024-06-27T16:57:10.399637
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/AS1G08_055T02_9000002148_14585cztM0_level2.evt modeM0/AS1G08_055T02_9000002148_14585cztM0_level2_quad_clean.evt
Size (bytes)522,339,84071,026,560
Size498.1 MB 67.7 MB
Events in quadrant A4,275,265429,381
Events in quadrant B3,397,531426,755
Events in quadrant C3,950,048416,656
Events in quadrant D3,749,217417,846

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172973
B0142672
C0163962
D0156122

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6596791.197696%
B6596751.137053%
C6596590.894482%
D6596530.803517%

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 7617 6597 2 2 0.03% 0.03%
B 7617 6597 8 8 0.11% 0.12%
C 7617 6597 0 0 0.00% 0.00%
D 7617 6597 8 8 0.11% 0.12%

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 23 953940 5706.62 825 809 167.0
A 0 226 63541 375.59 825 809 167.0
A 8 15 48652 286.45 825 809 167.0
B 10 16 57041 356.09 821 802 157.9
B 0 229 41204 255.81 821 802 157.9
B 0 189 37408 231.78 821 802 157.9
C 3 233 837241 4504.09 797 801 185.7
C 13 61 5696 26.36 797 801 185.7
C 3 232 4286 18.77 797 801 185.7
D 12 110 619291 2977.62 797 781 207.7
D 2 152 38892 183.47 797 781 207.7
D 2 234 24496 114.17 797 781 207.7

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