ASTROSAT CZTI

Data Quality Report

Orbit 37559

Creation date: 2024-06-27T21:41:31.423291
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/AS1C07_001T11_9000005336_37559cztM0_level2.evt modeM0/AS1C07_001T11_9000005336_37559cztM0_level2_quad_clean.evt
Size (bytes)480,882,240101,684,160
Size458.6 MB 97.0 MB
Events in quadrant A2,848,959689,128
Events in quadrant B4,230,414679,064
Events in quadrant C2,878,887676,065
Events in quadrant D4,225,429643,422

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119893
B0167132
C0120062
D0162822

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5594110.196639%
B55941422.538434%
C5594380.679299%
D55942334.165177%

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 7236 5595 2 2 0.03% 0.04%
B 7236 5595 102 102 1.41% 1.82%
C 7236 5595 30 30 0.41% 0.54%
D 7236 5595 224 224 3.10% 4.00%

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 344619 2673.47 629 617 128.7
A 12 189 31006 236.17 629 617 128.7
A 13 6 19267 144.94 629 617 128.7
B 4 80 1136459 9626.27 619 602 118.0
B 5 172 184722 1560.4 619 602 118.0
B 5 200 96091 809.26 619 602 118.0
C 15 214 259371 1819.95 610 611 142.2
C 14 254 125253 876.65 610 611 142.2
C 0 10 84700 591.43 610 611 142.2
D 2 249 855784 5800.48 607 590 147.4
D 12 235 370602 2509.66 607 590 147.4
D 5 222 168719 1140.36 607 590 147.4

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