ASTROSAT CZTI

Data Quality Report

Orbit 40007

Creation date: 2024-06-27T22:11:12.813162
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/AS1A12_054T03_9000005516_40007cztM0_level2.fits modeM0/AS1A12_054T03_9000005516_40007cztM0_level2_quad_clean.evt
Size (bytes)342,711,36087,865,920
Size326.8 MB 83.8 MB
Events in quadrant A3,252,986573,622
Events in quadrant B2,799,273606,959
Events in quadrant C2,677,321591,415
Events in quadrant D3,542,229516,423

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131843
B0120592
C0113532
D0143562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53152284.289746%
B5315841.580433%
C5315100.188147%
D53153416.415804%

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 7018 5316 158 158 2.25% 2.97%
B 7018 5316 71 71 1.01% 1.34%
C 7018 5316 6 6 0.09% 0.11%
D 7018 5316 292 292 4.16% 5.49%

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 13 248 578484 4901.55 572 562 117.9
A 10 83 431106 3651.59 572 562 117.9
A 2 79 17261 141.63 572 562 117.9
B 4 171 497429 4395.42 580 566 113.0
B 12 111 14128 119.97 580 566 113.0
B 11 111 12878 108.92 580 566 113.0
C 15 214 219959 1626.88 574 577 134.8
C 9 54 151690 1120.61 574 577 134.8
C 0 10 29731 216.2 574 577 134.8
D 12 227 1013787 7455.03 553 538 135.9
D 2 250 186367 1367.25 553 538 135.9
D 13 249 110952 812.38 553 538 135.9

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