ASTROSAT CZTI

Data Quality Report

Orbit 47226

Creation date: 2024-06-27T23:33:06.360404
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/AS1C09_005T01_9000006304_47226cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47226cztM0_level2_quad_clean.evt
Size (bytes)513,898,560104,794,560
Size490.1 MB 99.9 MB
Events in quadrant A9,144,541638,900
Events in quadrant B3,456,543722,026
Events in quadrant C2,817,755708,864
Events in quadrant D3,099,962650,131

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0318042
B0149192
C0131362
D0140262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6494104116.030182%
B64942103.233754%
C649480.123191%
D6494300.461965%

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 7639 6495 751 751 9.83% 11.56%
B 7638 6493 114 114 1.49% 1.76%
C 7638 6493 1 1 0.01% 0.02%
D 7638 6493 26 26 0.34% 0.40%

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 3480180 24299.62 690 676 143.2
A 9 191 2960791 20672.4 690 676 143.2
A 7 3 33850 231.68 690 676 143.2
B 15 201 463758 3323.38 714 692 139.3
B 5 32 79810 567.82 714 692 139.3
B 4 171 28996 203.14 714 692 139.3
C 14 254 20834 121.03 709 711 166.3
C 0 207 13461 76.69 709 711 166.3
C 3 160 10895 61.25 709 711 166.3
D 1 47 73236 408.95 703 679 177.4
D 13 84 65303 364.24 703 679 177.4
D 2 249 62542 348.68 703 679 177.4

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