ASTROSAT CZTI

Data Quality Report

Orbit 22569

Creation date: 2024-06-27T18:42:56.884347
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_054T01_9000003348_22569cztM0_level2.evt modeM0/AS1A07_054T01_9000003348_22569cztM0_level2_quad_clean.evt
Size (bytes)457,413,120118,730,880
Size436.2 MB 113.2 MB
Events in quadrant A3,254,842788,505
Events in quadrant B3,438,334794,070
Events in quadrant C3,272,523773,331
Events in quadrant D3,417,462758,903

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143883
B0149772
C0142812
D0150802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6910290.419682%
B6910961.389291%
C6910931.345876%
D6910721.041968%

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 7605 6912 0 0 0.00% 0.00%
B 7605 6912 3 3 0.04% 0.04%
C 7605 6912 0 0 0.00% 0.00%
D 7605 6912 34 34 0.45% 0.49%

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 34 94398 571.77 819 802 163.7
A 13 254 11908 67.85 819 802 163.7
A 0 226 7055 38.2 819 802 163.7
B 15 33 132129 839.86 821 800 156.4
B 15 35 26719 165.75 821 800 156.4
B 0 228 26040 161.41 821 800 156.4
C 14 238 125740 671.86 799 803 186.0
C 10 222 15392 78.45 799 803 186.0
C 0 10 13561 68.61 799 803 186.0
D 1 52 114677 587.84 802 780 193.8
D 2 136 98479 504.24 802 780 193.8
D 2 153 60079 306.05 802 780 193.8

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