ASTROSAT CZTI

Data Quality Report

Orbit 28238

Creation date: 2024-06-27T19:49:30.764563
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/AS1C05_019T04_9000004074_28238cztM0_level2.evt modeM0/AS1C05_019T04_9000004074_28238cztM0_level2_quad_clean.evt
Size (bytes)475,220,16089,300,160
Size453.2 MB 85.2 MB
Events in quadrant A3,089,508566,757
Events in quadrant B3,160,141583,665
Events in quadrant C3,347,698564,518
Events in quadrant D4,362,588545,156

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134660
B0136570
C0143350
D0171970

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6363310.487192%
B6364320.502828%
C63641041.634192%
D63641412.215588%

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 7563 6364 3 3 0.04% 0.05%
B 7564 6365 2 2 0.03% 0.03%
C 7564 6365 6 6 0.08% 0.09%
D 7564 6365 99 99 1.31% 1.56%

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 12293 72.91 796 781 157.9
A 13 254 9969 58.2 796 781 157.9
A 3 137 7639 43.44 796 781 157.9
B 0 230 29251 190.61 798 778 149.4
B 12 111 17808 114.01 798 778 149.4
B 11 111 16648 106.24 798 778 149.4
C 3 233 174459 966.85 780 786 179.6
C 14 238 128215 709.41 780 786 179.6
C 13 61 5291 25.08 780 786 179.6
D 1 52 757417 4147.18 775 756 182.5
D 8 195 506382 2771.28 775 756 182.5
D 7 238 91782 498.9 775 756 182.5

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