ASTROSAT CZTI

Data Quality Report

Orbit 29112

Creation date: 2024-06-27T20:00:19.203124
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_063T01_9000004182_29112cztM0_level2.evt modeM0/AS1A10_063T01_9000004182_29112cztM0_level2_quad_clean.evt
Size (bytes)542,753,280104,063,040
Size517.6 MB 99.2 MB
Events in quadrant A3,368,385673,500
Events in quadrant B3,640,419688,491
Events in quadrant C4,562,316663,678
Events in quadrant D4,398,173645,109

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144762
B0152092
C0183662
D0176262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6896440.638051%
B68961191.725638%
C68961692.450696%
D68961642.378190%

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 7621 6897 0 0 0.00% 0.00%
B 7621 6897 27 27 0.35% 0.39%
C 7621 6897 2 2 0.03% 0.03%
D 7621 6897 115 115 1.51% 1.67%

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 15 174 30896 173.59 863 845 173.1
A 13 254 12490 67.27 863 845 173.1
A 3 137 8367 43.45 863 845 173.1
B 10 245 221640 1332.77 862 841 165.7
B 12 111 20257 117.2 862 841 165.7
B 5 255 18907 109.05 862 841 165.7
C 3 233 1154420 5889.53 836 843 195.9
C 14 238 134222 680.96 836 843 195.9
C 2 114 16524 80.06 836 843 195.9
D 1 52 806402 4021.47 832 809 200.3
D 8 195 323143 1609.07 832 809 200.3
D 12 233 57599 283.49 832 809 200.3

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