ASTROSAT CZTI

Data Quality Report

Orbit 42953

Creation date: 2024-06-27T22:46:13.472366
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/AS1T05_143T01_9000005834_42953cztM0_level2.fits modeM0/AS1T05_143T01_9000005834_42953cztM0_level2_quad_clean.evt
Size (bytes)328,227,84087,514,560
Size313.0 MB 83.5 MB
Events in quadrant A3,116,747598,960
Events in quadrant B2,517,125612,506
Events in quadrant C2,486,377586,890
Events in quadrant D3,645,394505,501

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123822
B0108292
C0104072
D0142212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4931921.865747%
B4931450.912594%
C4931290.588116%
D49314308.720341%

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 7054 4932 68 68 0.96% 1.38%
B 7053 4930 36 36 0.51% 0.73%
C 7053 4930 29 29 0.41% 0.59%
D 7053 4930 407 407 5.77% 8.26%

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 571813 5104.09 550 539 111.9
A 15 237 342218 3052.75 550 539 111.9
A 7 3 26362 230.72 550 539 111.9
B 4 171 208455 1987.44 553 538 104.6
B 3 112 42000 396.33 553 538 104.6
B 5 255 35695 336.06 553 538 104.6
C 15 214 200471 1572.21 550 554 127.2
C 12 2 124268 972.92 550 554 127.2
C 3 233 7406 53.89 550 554 127.2
D 10 118 894324 7010.17 527 513 127.5
D 12 6 310922 2434.54 527 513 127.5
D 1 52 109261 852.91 527 513 127.5

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