ASTROSAT CZTI

Data Quality Report

Orbit 48710

Creation date: 2024-11-30T10:58:26.476351
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_037T01_9000006436_48710cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48710cztM0_level2_quad_clean.evt
Size (bytes)424,370,880104,682,240
Size404.7 MB 99.8 MB
Events in quadrant A6,748,517669,000
Events in quadrant B2,865,992722,342
Events in quadrant C2,783,788695,203
Events in quadrant D2,801,750626,539

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243892
B0134642
C0133282
D0134972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65452804.278075%
B6546320.488848%
C654690.137489%
D6546110.168042%

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 7509 6545 165 165 2.20% 2.52%
B 7511 6547 7 7 0.09% 0.11%
C 7511 6547 1 1 0.01% 0.02%
D 7511 6547 6 6 0.08% 0.09%

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 3876341 26864.29 689 672 144.3
A 13 248 197394 1363.58 689 672 144.3
A 13 254 12769 83.85 689 672 144.3
B 12 16 38149 268.67 707 683 139.4
B 12 111 17971 123.97 707 683 139.4
B 11 111 16587 114.05 707 683 139.4
C 3 233 31319 185.77 698 701 164.8
C 14 254 11347 64.59 698 701 164.8
C 12 2 8469 47.13 698 701 164.8
D 12 238 71402 411.61 687 666 171.9
D 2 234 33745 192.49 687 666 171.9
D 2 233 30247 172.13 687 666 171.9

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