ASTROSAT CZTI

Data Quality Report

Orbit 19217

Creation date: 2024-06-27T18:00:20.578325
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/AS1A05_063T03_9000002840_19217cztM0_level2.evt modeM0/AS1A05_063T03_9000002840_19217cztM0_level2_quad_clean.evt
Size (bytes)510,445,44067,515,840
Size486.8 MB 64.4 MB
Events in quadrant A3,260,175398,373
Events in quadrant B3,295,855407,074
Events in quadrant C4,866,546385,787
Events in quadrant D3,583,123387,305

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139743
B0139442
C0195452
D0150802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6677701.048375%
B6677801.198143%
C66772193.279916%
D66771482.216564%

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 7682 6677 2 2 0.03% 0.03%
B 7682 6677 0 0 0.00% 0.00%
C 7682 6677 34 34 0.44% 0.51%
D 7682 6677 92 92 1.20% 1.38%

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 9 143 21625 122.74 841 824 169.5
A 0 226 7207 37.67 841 824 169.5
A 13 254 6831 35.45 841 824 169.5
B 12 111 19726 118.12 837 817 160.1
B 11 111 17489 104.14 837 817 160.1
B 14 111 15217 89.95 837 817 160.1
C 3 233 1622345 8686.99 800 804 186.7
C 14 238 124677 663.62 800 804 186.7
C 13 61 5782 26.67 800 804 186.7
D 11 176 457348 2301.64 817 795 198.4
D 2 234 26400 129.08 817 795 198.4
D 10 199 18598 89.75 817 795 198.4

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