ASTROSAT CZTI

Data Quality Report

Orbit 46096

Creation date: 2024-06-27T23:19:11.064999
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_077T01_9000006168_46096cztM0_level2.fits modeM0/AS1A13_077T01_9000006168_46096cztM0_level2_quad_clean.evt
Size (bytes)427,155,84070,058,880
Size407.4 MB 66.8 MB
Events in quadrant A3,995,437506,250
Events in quadrant B2,144,629519,134
Events in quadrant C1,995,448499,675
Events in quadrant D7,328,418281,501

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148170
B094420
C092030
D0248540

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4473491.095462%
B4474140.312919%
C447410.022351%
D4474189142.266428%

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 4473 4473 14 14 0.31% 0.31%
B 4474 4474 7 7 0.16% 0.16%
C 4474 4474 0 0 0.00% 0.00%
D 4474 4474 1683 1683 37.62% 37.62%

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 1898918 18241.72 497 488 104.1
A 9 191 108957 1042.26 497 488 104.1
A 3 7 47541 452.12 497 488 104.1
B 0 190 94879 967.31 495 480 97.6
B 5 172 44991 456.1 495 480 97.6
B 3 112 16472 163.87 495 480 97.6
C 14 254 80641 690.91 490 493 116.0
C 3 233 4922 38.18 490 493 116.0
C 13 61 3336 24.51 490 493 116.0
D 2 37 5277604 50217.42 405 392 105.1
D 1 52 188076 1785.98 405 392 105.1
D 13 171 104233 988.14 405 392 105.1

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