ASTROSAT CZTI

Data Quality Report

Orbit 46524

Creation date: 2024-06-27T23:24:13.495011
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/AS1A13_068T07_9000006222_46524cztM0_level2.fits modeM0/AS1A13_068T07_9000006222_46524cztM0_level2_quad_clean.evt
Size (bytes)426,404,16081,691,200
Size406.7 MB 77.9 MB
Events in quadrant A6,350,197506,273
Events in quadrant B2,792,495568,774
Events in quadrant C3,035,796529,173
Events in quadrant D3,193,319497,301

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224580
B0117590
C0129910
D0131810

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A530859911.284853%
B5309200.376719%
C53091973.710680%
D5309901.695235%

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 5308 5308 476 476 8.97% 8.97%
B 5309 5309 13 13 0.24% 0.24%
C 5309 5309 176 176 3.32% 3.32%
D 5309 5309 97 97 1.83% 1.83%

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 2527799 21922.17 546 534 115.3
A 15 174 683742 5926.33 546 534 115.3
A 14 235 622666 5396.54 546 534 115.3
B 3 112 163041 1443.52 568 551 112.6
B 5 255 69125 609.19 568 551 112.6
B 15 201 67318 593.14 568 551 112.6
C 12 2 270186 2071.66 547 550 130.2
C 15 158 261348 2003.75 547 550 130.2
C 14 254 246764 1891.7 547 550 130.2
D 1 47 291740 2079.95 555 539 140.0
D 13 249 207663 1479.42 555 539 140.0
D 1 52 115750 822.91 555 539 140.0

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