ASTROSAT CZTI

Data Quality Report

Orbit 47601

Creation date: 2024-07-17T14:00:35.268769
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_037T05_9000006338_47601cztM0_level2.fits modeM0/AS1A13_037T05_9000006338_47601cztM0_level2_quad_clean.evt
Size (bytes)279,250,56055,759,680
Size266.3 MB 53.2 MB
Events in quadrant A3,849,367358,978
Events in quadrant B2,138,576387,833
Events in quadrant C1,714,705368,027
Events in quadrant D2,354,466319,713

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138920
B086480
C075800
D096660

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A35862326.469604%
B3586581.617401%
C3586160.446180%
D35862276.330173%

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 3586 3586 167 167 4.66% 4.66%
B 3586 3586 43 43 1.20% 1.20%
C 3586 3586 1 1 0.03% 0.03%
D 3586 3586 221 221 6.16% 6.16%

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 1778858 22292.77 377 368 79.8
A 13 248 406927 5096.08 377 368 79.8
A 9 191 139191 1740.1 377 368 79.8
B 5 172 240650 3119.01 385 374 77.0
B 0 200 101204 1308.87 385 374 77.0
B 5 29 78847 1018.65 385 374 77.0
C 3 233 205269 2247.39 382 384 91.2
C 14 254 9384 98.72 382 384 91.2
C 15 208 8023 83.79 382 384 91.2
D 12 2 454937 4799.08 370 359 94.7
D 2 249 305669 3223.22 370 359 94.7
D 12 233 85755 901.54 370 359 94.7

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