ASTROSAT CZTI

Data Quality Report

Orbit 22549

Creation date: 2024-06-27T18:42:39.901547
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/AS1A07_148T05_9000003346_22549cztM0_level2.evt modeM0/AS1A07_148T05_9000003346_22549cztM0_level2_quad_clean.evt
Size (bytes)456,272,64069,609,600
Size435.1 MB 66.4 MB
Events in quadrant A3,145,785424,189
Events in quadrant B3,337,560432,443
Events in quadrant C3,200,358414,949
Events in quadrant D3,720,083409,725

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131041
B0136461
C0132451
D0151041

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6107530.867857%
B6107821.342721%
C6107721.178975%
D61061121.834261%

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 7292 6107 0 0 0.00% 0.00%
B 7292 6107 17 17 0.23% 0.28%
C 7291 6106 0 0 0.00% 0.00%
D 7291 6106 21 21 0.29% 0.34%

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 13 254 10889 61.92 814 801 162.9
A 0 226 7045 38.33 814 801 162.9
A 3 137 6638 35.83 814 801 162.9
B 15 33 169536 1120.13 803 783 150.7
B 0 190 20127 128.4 803 783 150.7
B 12 111 17539 111.22 803 783 150.7
C 14 238 125881 688.24 783 789 181.8
C 0 207 15393 80.35 783 789 181.8
C 0 10 5978 28.55 783 789 181.8
D 1 52 557541 2882.27 794 772 193.2
D 12 33 84526 433.58 794 772 193.2
D 2 136 36622 185.59 794 772 193.2

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