ASTROSAT CZTI

Data Quality Report

Orbit 09913

Creation date: 2024-06-27T15:52:24.635577
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/AS1A03_053T01_9000001410_09913cztM0_level2.evt modeM0/AS1A03_053T01_9000001410_09913cztM0_level2_quad_clean.evt
Size (bytes)535,377,60085,999,680
Size510.6 MB 82.0 MB
Events in quadrant A4,646,983527,169
Events in quadrant B3,345,730572,940
Events in quadrant C2,887,880563,703
Events in quadrant D4,918,624513,215

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01282
B01284
C01280
D01284

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018358394
B014381436
C012935279
D019336460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A610566210.843571%
B6097791.295719%
C6121160.261395%
D61072934.797773%

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 7544 6234 599 599 7.94% 9.61%
B 7544 6235 15 15 0.20% 0.24%
C 7544 6239 0 0 0.00% 0.00%
D 7544 6249 296 296 3.92% 4.74%

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 15 239 1507888 10191.86 736 722 147.9
A 14 254 274470 1851.16 736 722 147.9
A 13 251 16376 105.86 736 722 147.9
B 4 239 103394 707.43 766 750 145.1
B 4 81 96154 657.53 766 750 145.1
B 0 219 43271 293.06 766 750 145.1
C 12 4 7920 41.94 736 740 171.2
C 13 61 5597 28.37 736 740 171.2
C 14 67 5387 27.14 736 740 171.2
D 8 195 525552 2758.15 715 697 190.3
D 2 33 473429 2484.24 715 697 190.3
D 2 136 359253 1884.24 715 697 190.3

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