ASTROSAT CZTI

Data Quality Report

Orbit 24349

Creation date: 2024-06-27T19:05:03.474004
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_145T01_9000003594_24349cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24349cztM0_level2_quad_clean.evt
Size (bytes)717,333,12084,435,840
Size684.1 MB 80.5 MB
Events in quadrant A2,983,560559,075
Events in quadrant B3,057,144577,588
Events in quadrant C6,514,810527,505
Events in quadrant D8,746,696455,444

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013559645
B013691667
C0247901046
D0329082654

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01366
B013610
C01357
D01355

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6292110.174825%
B6284380.604710%
C62564216.729540%
D6172200132.420609%

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 7432 6369 0 0 0.00% 0.00%
B 7397 6356 0 0 0.00% 0.00%
C 7414 6341 35 35 0.47% 0.55%
D 7281 6271 1761 1761 24.19% 28.08%

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 8790 51.87 772 756 154.9
A 3 137 6878 39.52 772 756 154.9
A 0 226 6693 38.33 772 756 154.9
B 12 111 18236 116.59 775 756 149.9
B 11 111 15922 101.16 775 756 149.9
B 14 111 14434 91.23 775 756 149.9
C 7 247 3523002 20720.51 728 732 170.0
C 14 238 113203 661.63 728 732 170.0
C 2 16 25605 146.32 728 732 170.0
D 12 218 2781912 18237.34 628 608 152.5
D 7 238 1785617 11704.52 628 608 152.5
D 1 52 840605 5507.96 628 608 152.5

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