ASTROSAT CZTI

Data Quality Report

Orbit 47722

Creation date: 2024-07-26T08:16:36.375606
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/AS1T05_213T01_9000006344_47722cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47722cztM0_level2_quad_clean.evt
Size (bytes)468,838,080108,912,960
Size447.1 MB 103.9 MB
Events in quadrant A6,677,594721,082
Events in quadrant B3,980,395720,175
Events in quadrant C2,875,348738,017
Events in quadrant D3,324,133671,527

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246851
B0160841
C01319011
D0141881

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64092624.088001%
B64103755.850234%
C6405200.312256%
D6409821.279451%

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 7589 6410 72 72 0.95% 1.12%
B 7590 6410 230 230 3.03% 3.59%
C 7589 6407 1 1 0.01% 0.02%
D 7589 6410 46 46 0.61% 0.72%

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 10 83 3601243 24040.15 725 709 149.8
A 13 248 178910 1189.82 725 709 149.8
A 9 191 99920 662.41 725 709 149.8
B 5 255 684225 4992.99 704 681 136.9
B 5 32 401524 2927.98 704 681 136.9
B 0 198 36517 261.77 704 681 136.9
C 14 254 49000 288.4 719 722 167.4
C 5 4 12926 72.9 719 722 167.4
C 12 2 12491 70.31 719 722 167.4
D 2 249 170714 955.67 722 697 177.9
D 4 221 73579 409.67 722 697 177.9
D 10 181 63203 351.35 722 697 177.9

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