ASTROSAT CZTI

Data Quality Report

Orbit 08122

Creation date: 2024-06-27T15:28:17.845739
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/AS1G06_033T01_9000001116_08122cztM0_level2.evt modeM0/AS1G06_033T01_9000001116_08122cztM0_level2_quad_clean.evt
Size (bytes)109,630,0808,130,240
Size104.6 MB 7.8 MB
Events in quadrant A921,19035,338
Events in quadrant B727,83035,963
Events in quadrant C699,08635,888
Events in quadrant D874,50634,296

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A035420
B029180
C028350
D034690

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1393292.081838%
B139390.646088%
C139330.215363%
D139360.430725%

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 1393 1393 0 0 0.00% 0.00%
B 1393 1393 0 0 0.00% 0.00%
C 1393 1393 0 0 0.00% 0.00%
D 1393 1393 0 0 0.00% 0.00%

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 15 79 212762 5468.01 182 178 38.9
A 3 1 3276 79.69 182 178 38.9
A 13 254 2197 51.93 182 178 38.9
B 5 255 7522 201.29 183 179 36.5
B 12 111 3056 78.86 183 179 36.5
B 0 219 2826 72.56 183 179 36.5
C 1 16 1623 33.97 178 179 42.5
C 13 61 1387 28.42 178 179 42.5
C 3 202 475 6.96 178 179 42.5
D 2 152 151910 3312.22 179 173 45.8
D 5 233 24705 535.5 179 173 45.8
D 13 122 12639 272.12 179 173 45.8

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