ASTROSAT CZTI

Data Quality Report

Orbit 44141

Creation date: 2024-06-27T22:59:41.276086
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_012T02_9000005950_44141cztM0_level2.fits modeM0/AS1A13_012T02_9000005950_44141cztM0_level2_quad_clean.evt
Size (bytes)396,702,720100,054,080
Size378.3 MB 95.4 MB
Events in quadrant A4,393,622666,383
Events in quadrant B3,432,276686,180
Events in quadrant C2,921,799674,760
Events in quadrant D3,493,657604,010

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171742
B0139761
C0124681
D0141311

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56972694.721783%
B56982855.001755%
C56981242.176202%
D56982444.282204%

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 6902 5698 130 130 1.88% 2.28%
B 6903 5699 122 122 1.77% 2.14%
C 6903 5699 23 23 0.33% 0.40%
D 6903 5699 118 118 1.71% 2.07%

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 1163777 8291.61 676 665 140.3
A 14 238 584335 4160.88 676 665 140.3
A 7 3 15063 102.64 676 665 140.3
B 5 235 352588 2654.37 678 659 132.6
B 5 172 314404 2366.37 678 659 132.6
B 0 189 39898 295.95 678 659 132.6
C 14 254 196427 1216.7 683 688 160.9
C 14 96 45193 276.64 683 688 160.9
C 3 233 5741 31.41 683 688 160.9
D 13 249 284361 1673.91 673 654 169.5
D 1 47 278461 1639.1 673 654 169.5
D 2 249 116138 681.37 673 654 169.5

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