ASTROSAT CZTI

Data Quality Report

Orbit 03000

Creation date: 2024-06-27T14:23:16.877105
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/AS1G05_238T05_9000000418_03000cztM0_level2.evt modeM0/AS1G05_238T05_9000000418_03000cztM0_level2_quad_clean.evt
Size (bytes)371,266,56037,146,240
Size354.1 MB 35.4 MB
Events in quadrant A3,807,018204,634
Events in quadrant B2,466,869213,837
Events in quadrant C2,261,942207,173
Events in quadrant D2,428,105208,459

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142131
B0101431
C097931
D0102531

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A41152666.464156%
B4115170.413123%
C41151493.620899%
D4115671.628190%

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 4115 4115 247 247 6.00% 6.00%
B 4115 4115 12 12 0.29% 0.29%
C 4115 4115 125 125 3.04% 3.04%
D 4115 4115 68 68 1.65% 1.65%

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 9 2073308 24082.33 413 404 86.1
A 14 249 107876 1248.57 413 404 86.1
A 14 63 9601 106.85 413 404 86.1
B 8 3 679959 8099.82 431 422 83.9
B 0 219 34236 403.05 431 422 83.9
B 2 249 28965 340.22 431 422 83.9
C 0 219 470685 4823.63 412 414 97.5
C 6 80 79310 809.25 412 414 97.5
C 1 192 64841 660.84 412 414 97.5
D 10 237 277981 2763.05 409 397 100.5
D 7 80 192176 1908.95 409 397 100.5
D 13 114 173151 1719.58 409 397 100.5

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