ASTROSAT CZTI

Data Quality Report

Orbit 22193

Creation date: 2024-06-27T18:37:56.437906
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/AS1A07_065T01_9000003284_22193cztM0_level2.evt modeM0/AS1A07_065T01_9000003284_22193cztM0_level2_quad_clean.evt
Size (bytes)478,520,64081,662,400
Size456.4 MB 77.9 MB
Events in quadrant A3,246,787513,299
Events in quadrant B3,306,210516,106
Events in quadrant C3,293,710492,559
Events in quadrant D4,182,909476,521

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139851
B0140571
C0140471
D0168401

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68021512.219935%
B68021632.396354%
C68021872.749191%
D68033715.453476%

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 7187 6803 0 0 0.00% 0.00%
B 7187 6803 2 2 0.03% 0.03%
C 7187 6803 0 0 0.00% 0.00%
D 7188 6803 188 188 2.62% 2.76%

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 13 254 12182 66.63 842 823 170.5
A 0 226 7335 38.2 842 823 170.5
A 3 137 7277 37.86 842 823 170.5
B 12 111 19897 118.9 832 812 160.5
B 11 111 17637 104.82 832 812 160.5
B 0 190 16469 97.54 832 812 160.5
C 14 238 125081 655.29 802 804 189.7
C 10 22 22595 114.9 802 804 189.7
C 10 91 12803 63.27 802 804 189.7
D 1 52 927712 4766.02 806 784 194.5
D 7 223 66582 338.32 806 784 194.5
D 12 233 53564 271.38 806 784 194.5

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