ASTROSAT CZTI

Data Quality Report

Orbit 03239

Creation date: 2024-06-27T14:26:35.990610
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/AS1G05_104T01_9000000440_03239cztM0_level2.evt modeM0/AS1G05_104T01_9000000440_03239cztM0_level2_quad_clean.evt
Size (bytes)447,108,48084,968,640
Size426.4 MB 81.0 MB
Events in quadrant A3,008,014542,314
Events in quadrant B3,452,844540,069
Events in quadrant C3,020,170531,586
Events in quadrant D3,620,861508,730

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135202
B0143831
C0136781
D0155641

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6457430.665944%
B6457210.325228%
C6457300.464612%
D64572253.484590%

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 7542 6457 26 26 0.34% 0.40%
B 7542 6457 8 8 0.11% 0.12%
C 7542 6457 18 18 0.24% 0.28%
D 7542 6458 220 220 2.92% 3.41%

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 0 118 172639 1155.43 723 711 148.8
A 0 226 23417 152.59 723 711 148.8
A 3 1 17237 111.06 723 711 148.8
B 15 204 449426 3134.84 740 724 143.1
B 2 249 61855 427.09 740 724 143.1
B 3 0 61595 425.27 740 724 143.1
C 14 223 127350 767.26 701 706 165.1
C 14 48 101319 609.56 701 706 165.1
C 6 80 42682 254.31 701 706 165.1
D 13 223 870154 5173.57 686 667 168.1
D 13 114 72411 426.89 686 667 168.1
D 13 239 47593 279.22 686 667 168.1

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