ASTROSAT CZTI

Data Quality Report

Orbit 44389

Creation date: 2024-06-27T23:02:58.846186
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_008T05_9000005996_44389cztM0_level2.fits modeM0/AS1A13_008T05_9000005996_44389cztM0_level2_quad_clean.evt
Size (bytes)502,122,240105,805,440
Size478.9 MB 100.9 MB
Events in quadrant A5,091,513723,256
Events in quadrant B3,573,449734,966
Events in quadrant C3,062,790716,294
Events in quadrant D6,350,252571,814

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200921
B0149881
C0138431
D0233935

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65521942.960928%
B65532293.494583%
C6553380.579887%
D6552103215.750916%

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 7472 6552 24 24 0.32% 0.37%
B 7473 6553 121 121 1.62% 1.85%
C 7473 6554 10 10 0.13% 0.15%
D 7472 6552 988 988 13.22% 15.08%

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 1827383 11654.82 754 739 156.7
A 15 223 172881 1098.34 754 739 156.7
A 13 248 104599 662.67 754 739 156.7
B 10 245 193188 1294.89 748 726 148.6
B 0 219 141197 945.09 748 726 148.6
B 0 168 84607 564.35 748 726 148.6
C 14 254 109286 621.24 733 739 174.7
C 12 250 31471 175.89 733 739 174.7
C 3 233 28529 159.05 733 739 174.7
D 4 221 916033 5213.4 691 668 175.6
D 12 233 652124 3710.32 691 668 175.6
D 13 249 456123 2594.01 691 668 175.6

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