ASTROSAT CZTI

Data Quality Report

Orbit 44083

Creation date: 2024-06-27T22:59:11.805327
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_012T01_9000005942_44083cztM0_level2.fits modeM0/AS1A13_012T01_9000005942_44083cztM0_level2_quad_clean.evt
Size (bytes)19,779,8406,122,880
Size18.9 MB 5.8 MB
Events in quadrant A202,67240,062
Events in quadrant B147,17441,095
Events in quadrant C145,05137,527
Events in quadrant D206,34734,333

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08090
B07010
C06981
D08550

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A35000.000000%
B35000.000000%
C34900.000000%
D349102.865330%

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 350 350 0 0 0.00% 0.00%
B 350 350 0 0 0.00% 0.00%
C 349 349 0 0 0.00% 0.00%
D 349 349 9 9 2.58% 2.58%

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 55931 5636.1 37 37 9.9
A 7 3 658 62.62 37 37 9.9
A 12 227 574 54.15 37 37 9.9
B 12 111 894 90.63 37 36 9.5
B 14 111 806 81.34 37 36 9.5
B 11 111 803 81.02 37 36 9.5
C 3 233 717 65.91 36 36 10.3
C 13 61 254 21.1 36 36 10.3
C 9 237 249 20.61 36 36 10.3
D 13 249 59549 5456.0 35 34 10.9
D 1 52 7275 663.81 35 34 10.9
D 2 249 3971 360.92 35 34 10.9

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