ASTROSAT CZTI

Data Quality Report

Orbit 46472

Creation date: 2024-06-27T23:23:33.330354
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_203T01_9000006214_46472cztM0_level2.fits modeM0/AS1T05_203T01_9000006214_46472cztM0_level2_quad_clean.evt
Size (bytes)476,328,960106,038,720
Size454.3 MB 101.1 MB
Events in quadrant A6,171,965708,004
Events in quadrant B3,446,699730,331
Events in quadrant C2,863,658696,662
Events in quadrant D4,648,327624,325

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225931
B0146191
C0131871
D0185441

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64621472.274838%
B64631822.816030%
C6463180.278508%
D64632644.084790%

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 7547 6463 44 44 0.58% 0.68%
B 7548 6464 112 112 1.48% 1.73%
C 7548 6464 0 0 0.00% 0.00%
D 7548 6463 235 235 3.11% 3.64%

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 3049610 20372.03 722 708 149.7
A 15 235 152250 1012.57 722 708 149.7
A 0 247 91888 609.24 722 708 149.7
B 5 32 407576 2822.28 727 702 144.2
B 0 190 71105 488.35 727 702 144.2
B 5 172 38328 260.99 727 702 144.2
C 12 2 34951 201.35 715 719 170.0
C 9 54 28294 162.19 715 719 170.0
C 3 233 11887 65.69 715 719 170.0
D 8 176 980198 5557.15 702 680 176.3
D 1 52 330279 1869.93 702 680 176.3
D 13 249 320914 1816.8 702 680 176.3

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