ASTROSAT CZTI

Data Quality Report

Orbit 42738

Creation date: 2024-06-27T22:43:40.215294
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/AS1A05_013T01_9000005822_42738cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42738cztM0_level2_quad_clean.evt
Size (bytes)305,233,92089,441,280
Size291.1 MB 85.3 MB
Events in quadrant A3,005,412601,840
Events in quadrant B2,581,299611,572
Events in quadrant C2,739,756585,650
Events in quadrant D2,557,747536,957

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119722
B0113202
C0113282
D0114332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0280
C0280
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5319170.319609%
B5319561.052829%
C5319180.338409%
D5319410.770822%

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 7172 5320 10 10 0.14% 0.19%
B 7172 5320 42 42 0.59% 0.79%
C 7172 5320 16 16 0.22% 0.30%
D 7172 5320 35 35 0.49% 0.66%

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 576189 4704.91 595 584 122.3
A 13 248 79766 647.22 595 584 122.3
A 12 189 44225 356.72 595 584 122.3
B 5 172 204865 1782.09 587 571 114.6
B 0 230 19276 163.17 587 571 114.6
B 0 156 18189 153.69 587 571 114.6
C 15 214 225272 1659.55 579 582 135.4
C 14 254 136503 1003.91 579 582 135.4
C 0 239 89332 655.5 579 582 135.4
D 13 249 84475 596.78 579 562 140.6
D 2 249 74178 523.55 579 562 140.6
D 12 6 44232 310.58 579 562 140.6

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