ASTROSAT CZTI

Data Quality Report

Orbit 18366

Creation date: 2024-06-27T17:48:52.522502
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/AS1A06_006T01_9000002720_18366cztM0_level2.evt modeM0/AS1A06_006T01_9000002720_18366cztM0_level2_quad_clean.evt
Size (bytes)432,120,96084,012,480
Size412.1 MB 80.1 MB
Events in quadrant A2,916,775538,184
Events in quadrant B3,408,114544,675
Events in quadrant C3,208,495527,170
Events in quadrant D3,138,772508,231

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125312
B0140422
C0134742
D0133132

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6098270.442768%
B60981242.033454%
C6098721.180715%
D6098811.328304%

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 7203 6099 0 0 0.00% 0.00%
B 7203 6099 40 40 0.56% 0.66%
C 7203 6099 2 2 0.03% 0.03%
D 7203 6099 48 48 0.67% 0.79%

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 11 29 10549 64.21 754 739 152.8
A 0 226 6712 39.1 754 739 152.8
A 12 194 5658 32.2 754 739 152.8
B 7 220 145893 1007.45 757 740 144.1
B 3 64 109002 751.4 757 740 144.1
B 0 189 75527 519.06 757 740 144.1
C 3 233 208916 1220.36 725 727 170.6
C 14 238 111448 649.02 725 727 170.6
C 0 207 58481 338.54 725 727 170.6
D 1 52 297685 1682.53 725 705 176.5
D 12 110 31392 173.86 725 705 176.5
D 2 234 26172 144.28 725 705 176.5

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