ASTROSAT CZTI

Data Quality Report

Orbit 32118

Creation date: 2024-06-27T20:36:39.733552
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/AS1T04_051T01_9000004686_32118cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32118cztM0_level2_quad_clean.evt
Size (bytes)500,480,64065,836,800
Size477.3 MB 62.8 MB
Events in quadrant A2,767,583419,167
Events in quadrant B5,250,605401,810
Events in quadrant C2,923,471408,404
Events in quadrant D3,846,728382,970

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0131

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012171701
B0208641629
C012613706
D0160171136

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01195
B01188
C01186
D01197

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5453270.495140%
B53992694.982404%
C54571081.979109%
D54332504.601509%

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 7166 5517 0 0 0.00% 0.00%
B 7161 5455 106 106 1.48% 1.94%
C 7165 5523 29 29 0.40% 0.53%
D 7163 5489 196 196 2.74% 3.57%

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 6 17003 116.11 712 701 140.4
A 13 254 10482 69.67 712 701 140.4
A 3 137 6741 43.02 712 701 140.4
B 6 159 1485789 11449.11 691 676 129.7
B 10 245 889005 6848.35 691 676 129.7
B 0 190 64501 492.04 691 676 129.7
C 14 238 119809 757.34 684 689 157.3
C 0 10 92120 581.3 684 689 157.3
C 2 114 12489 75.02 684 689 157.3
D 2 250 676093 4228.41 675 658 159.7
D 8 195 590384 3691.85 675 658 159.7
D 2 234 30036 183.91 675 658 159.7

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