ASTROSAT CZTI

Data Quality Report

Orbit 30544

Creation date: 2024-06-27T20:16:43.544028
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/AS1A10_053T17_9000004396_30544cztM0_level2.evt modeM0/AS1A10_053T17_9000004396_30544cztM0_level2_quad_clean.evt
Size (bytes)589,792,32060,707,520
Size562.5 MB 57.9 MB
Events in quadrant A3,161,604374,939
Events in quadrant B6,595,606345,354
Events in quadrant C3,350,540349,693
Events in quadrant D4,343,627343,858

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127361
B0235912
C0133641
D0167231

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60651101.813685%
B606591215.037098%
C60652093.446002%
D60651582.605111%

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 7185 6066 2 2 0.03% 0.03%
B 7185 6066 528 528 7.35% 8.70%
C 7185 6066 53 53 0.74% 0.87%
D 7185 6066 145 145 2.02% 2.39%

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 8 192 13621 79.66 816 801 160.9
A 13 254 10513 60.35 816 801 160.9
A 3 137 7895 44.08 816 801 160.9
B 6 36 1908709 12954.65 769 750 147.3
B 6 159 1612723 10944.97 769 750 147.3
B 3 209 35395 235.23 769 750 147.3
C 0 10 230937 1331.02 753 762 172.9
C 14 238 123963 712.43 753 762 172.9
C 3 233 42012 238.53 753 762 172.9
D 12 227 1048850 5747.37 780 761 182.4
D 8 195 238755 1305.08 780 761 182.4
D 1 52 54940 297.1 780 761 182.4

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