ASTROSAT CZTI

Data Quality Report

Orbit 33962

Creation date: 2024-06-27T20:54:54.586044
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/AS1A11_058T01_9000004854_33962cztM0_level2.evt modeM0/AS1A11_058T01_9000004854_33962cztM0_level2_quad_clean.evt
Size (bytes)546,935,04099,293,760
Size521.6 MB 94.7 MB
Events in quadrant A4,447,380681,717
Events in quadrant B3,187,364689,901
Events in quadrant C2,811,987665,292
Events in quadrant D5,762,686602,528

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168702
B0127531
C0112571
D0207401

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52321402.675841%
B52321542.943425%
C5232531.012997%
D523265212.461774%

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 7023 5232 142 142 2.02% 2.71%
B 7023 5232 113 113 1.61% 2.16%
C 7023 5232 34 34 0.48% 0.65%
D 7023 5232 538 538 7.66% 10.28%

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 15 169 2002687 16621.85 605 594 120.4
A 14 238 91341 753.4 605 594 120.4
A 10 83 10178 79.57 605 594 120.4
B 5 172 613305 5378.65 602 588 113.9
B 3 112 64466 560.74 602 588 113.9
B 0 229 41228 356.75 602 588 113.9
C 15 214 229670 1695.12 586 590 135.1
C 0 10 173616 1280.34 586 590 135.1
C 3 233 82147 603.5 586 590 135.1
D 8 195 1343983 8819.45 558 544 152.3
D 7 238 812967 5333.42 558 544 152.3
D 13 249 484984 3180.27 558 544 152.3

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