ASTROSAT CZTI

Data Quality Report

Orbit 10349

Creation date: 2024-06-27T15:58:13.095980
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/AS1C02_038T02_9000001490_10349cztM0_level2.evt modeM0/AS1C02_038T02_9000001490_10349cztM0_level2_quad_clean.evt
Size (bytes)341,530,56063,858,240
Size325.7 MB 60.9 MB
Events in quadrant A2,339,198396,370
Events in quadrant B2,361,070394,592
Events in quadrant C2,321,272402,086
Events in quadrant D2,995,776405,715

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229
B02613
C02613
D0207

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0219113
B0220128
C0220114
D0208108

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02158911901
B02374914094
C02268512955
D02621214291

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4700511.085106%
B4608491.063368%
C4715420.890774%
D5097691.353737%

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 6973 5483 0 0 0.00% 0.00%
B 6973 5402 0 0 0.00% 0.00%
C 6971 5476 0 0 0.00% 0.00%
D 6973 5485 2 2 0.03% 0.04%

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 13 251 9431 72.45 602 590 122.0
A 8 15 8420 64.16 602 590 122.0
A 0 226 5590 40.97 602 590 122.0
B 4 239 47239 421.93 585 570 110.6
B 11 51 23050 203.24 585 570 110.6
B 0 214 11983 103.18 585 570 110.6
C 4 175 9022 62.22 591 594 135.5
C 14 234 8085 55.3 591 594 135.5
C 13 61 4491 28.77 591 594 135.5
D 8 195 203757 1346.19 637 621 150.9
D 2 33 182726 1206.82 637 621 150.9
D 14 34 105597 695.68 637 621 150.9

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