ASTROSAT CZTI

Data Quality Report

Orbit 11415

Creation date: 2024-06-27T16:12:34.735538
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_066T01_9000001668_11415cztM0_level2.evt modeM0/AS1G08_066T01_9000001668_11415cztM0_level2_quad_clean.evt
Size (bytes)751,178,880120,196,800
Size716.4 MB 114.6 MB
Events in quadrant A5,202,003740,866
Events in quadrant B6,879,269722,602
Events in quadrant C4,614,629739,563
Events in quadrant D5,342,271709,395

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226422
B0274822
C0214742
D0234122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02140
B02140
C02140
D02140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A105001451.380952%
B105006155.857143%
C10500960.914286%
D105001311.247619%

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 11275 10502 26 26 0.23% 0.25%
B 11275 10502 292 292 2.59% 2.78%
C 11275 10502 0 0 0.00% 0.00%
D 11275 10502 33 33 0.29% 0.31%

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 8 5 423520 1690.38 1213 1182 249.8
A 1 162 35192 136.12 1213 1182 249.8
A 11 29 24720 94.21 1213 1182 249.8
B 4 239 2076959 8922.0 1200 1168 232.7
B 3 189 64692 273.03 1200 1168 232.7
B 15 204 30685 126.87 1200 1168 232.7
C 13 61 8644 27.26 1184 1192 273.3
C 3 202 3070 6.87 1184 1192 273.3
C -1 -1 -1 -1.0 1184 1192 273.3
D 13 152 363842 1279.88 1175 1140 283.4
D 10 253 143764 503.28 1175 1140 283.4
D 2 120 97517 340.09 1175 1140 283.4

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