ASTROSAT CZTI

Data Quality Report

Orbit 06217

Creation date: 2024-06-27T15:04:14.725855
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/AS1G06_103T01_9000000812_06217cztM0_level2.evt modeM0/AS1G06_103T01_9000000812_06217cztM0_level2_quad_clean.evt
Size (bytes)847,448,640148,717,440
Size808.2 MB 141.8 MB
Events in quadrant A7,265,001896,752
Events in quadrant B6,031,755927,048
Events in quadrant C5,792,734914,684
Events in quadrant D5,703,061875,619

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027012
B02704
C02702
D02700

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030828520
B026924406
C026567284
D026904375

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A128311781.387265%
B128631821.414911%
C128991220.945810%
D128591200.933199%

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 14567 13020 5 5 0.03% 0.04%
B 14567 13021 10 10 0.07% 0.08%
C 14567 13033 0 0 0.00% 0.00%
D 14567 13027 12 12 0.08% 0.09%

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 15 236 740126 2420.49 1486 1451 305.2
A 13 34 642777 2101.5 1486 1451 305.2
A 8 15 128587 416.6 1486 1451 305.2
B 0 219 92079 314.42 1511 1475 288.2
B 15 204 42863 143.63 1511 1475 288.2
B 4 81 41408 138.58 1511 1475 288.2
C 1 16 68291 195.93 1467 1474 341.0
C 13 61 11757 30.15 1467 1474 341.0
C 8 222 4242 8.12 1467 1474 341.0
D 2 136 89765 246.15 1458 1411 358.9
D 5 97 42050 113.22 1458 1411 358.9
D 2 206 36240 97.03 1458 1411 358.9

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