ASTROSAT CZTI

Data Quality Report

Orbit 44734

Creation date: 2024-06-27T23:05:51.914423
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_004T11_9000006018_44734cztM0_level2.fits modeM0/AS1A13_004T11_9000006018_44734cztM0_level2_quad_clean.evt
Size (bytes)594,861,120104,042,880
Size567.3 MB 99.2 MB
Events in quadrant A5,554,558726,500
Events in quadrant B3,902,186739,846
Events in quadrant C3,078,307730,140
Events in quadrant D8,992,697510,780

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215572
B0158302
C0136553
D0310762

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63502243.527559%
B63502944.629921%
C6349821.291542%
D6349180828.476926%

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 7555 6351 100 100 1.32% 1.57%
B 7555 6351 167 167 2.21% 2.63%
C 7554 6350 58 58 0.77% 0.91%
D 7554 6350 1637 1637 21.67% 25.78%

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 2047987 13876.53 717 700 147.5
A 15 223 701256 4748.37 717 700 147.5
A 0 243 21030 137.8 717 700 147.5
B 0 189 654565 4694.15 718 696 139.3
B 0 190 112202 800.5 718 696 139.3
B 4 171 101361 722.68 718 696 139.3
C 5 128 210782 1255.89 721 727 167.3
C 12 2 27015 157.17 721 727 167.3
C 1 3 15900 90.72 721 727 167.3
D 1 52 4566210 28375.71 647 628 160.9
D 13 249 961028 5969.02 647 628 160.9
D 2 249 301450 1869.65 647 628 160.9

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