ASTROSAT CZTI

Data Quality Report

Orbit 33952

Creation date: 2024-06-27T20:54:37.846964
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/AS1A11_068T02_9000004850_33952cztM0_level2.evt modeM0/AS1A11_068T02_9000004850_33952cztM0_level2_quad_clean.evt
Size (bytes)138,358,08030,902,400
Size131.9 MB 29.5 MB
Events in quadrant A739,642209,155
Events in quadrant B1,018,962203,714
Events in quadrant C919,465205,715
Events in quadrant D1,394,874192,778

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033941
B041431
C037481
D053871

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A168710.059277%
B1687875.157084%
C1687372.193242%
D1687955.631298%

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 1687 1687 0 0 0.00% 0.00%
B 1687 1687 61 61 3.62% 3.62%
C 1687 1687 20 20 1.19% 1.19%
D 1687 1687 80 80 4.74% 4.74%

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 6912 170.58 188 185 39.4
A 13 6 4111 99.55 188 185 39.4
A 13 254 2733 64.61 188 185 39.4
B 5 172 231947 6108.16 186 181 37.9
B 3 112 15755 410.45 186 181 37.9
B 0 219 8958 231.32 186 181 37.9
C 0 10 91189 2026.62 184 185 44.9
C 15 214 74950 1664.98 184 185 44.9
C 3 233 25458 562.82 184 185 44.9
D 8 195 264042 5747.05 179 173 45.9
D 2 250 233447 5080.69 179 173 45.9
D 12 6 100355 2181.96 179 173 45.9

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