ASTROSAT CZTI

Data Quality Report

Orbit 12383

Creation date: 2024-06-27T16:26:27.059481
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_072T03_9000001836_12383cztM0_level2.evt modeM0/AS1G08_072T03_9000001836_12383cztM0_level2_quad_clean.evt
Size (bytes)169,439,04031,069,440
Size161.6 MB 29.6 MB
Events in quadrant A1,047,137214,506
Events in quadrant B1,926,587173,019
Events in quadrant C780,958215,116
Events in quadrant D1,251,459205,329

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042770
B069500
C036620
D049200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A180960.331675%
B180945925.373134%
C180900.000000%
D1809603.316750%

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 1810 1810 0 0 0.00% 0.00%
B 1810 1810 434 434 23.98% 23.98%
C 1810 1810 0 0 0.00% 0.00%
D 1810 1810 61 61 3.37% 3.37%

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 13 251 74415 1677.83 209 204 44.2
A 1 162 57398 1293.09 209 204 44.2
A 1 178 30814 692.06 209 204 44.2
B 2 32 1045406 30046.64 170 166 34.8
B 2 48 117085 3360.97 170 166 34.8
B 4 239 49448 1416.67 170 166 34.8
C 14 234 13911 288.58 196 197 47.5
C 15 208 1623 30.01 196 197 47.5
C 13 61 1410 25.52 196 197 47.5
D 1 52 174991 3549.27 196 191 49.2
D 10 199 171191 3472.11 196 191 49.2
D 13 104 77265 1564.97 196 191 49.2

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