ASTROSAT CZTI

Data Quality Report

Orbit 14628

Creation date: 2024-06-27T16:57:41.369665
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/AS1G08_026T01_9000002154_14628cztM0_level2.evt modeM0/AS1G08_026T01_9000002154_14628cztM0_level2_quad_clean.evt
Size (bytes)561,634,56064,964,160
Size535.6 MB 62.0 MB
Events in quadrant A3,661,698385,294
Events in quadrant B3,761,373381,346
Events in quadrant C5,719,976366,127
Events in quadrant D3,419,231373,751

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149322
B0151961
C0217171
D0145491

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6602951.438958%
B66021602.423508%
C66021131.711603%
D66021251.893366%

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 7508 6603 0 0 0.00% 0.00%
B 7508 6603 28 28 0.37% 0.42%
C 7508 6603 1 1 0.01% 0.02%
D 7508 6603 54 54 0.72% 0.82%

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 0 23 154896 916.83 820 803 168.1
A 1 162 134506 795.52 820 803 168.1
A 1 178 63436 372.66 820 803 168.1
B 0 189 365340 2329.05 810 791 156.5
B 0 229 96704 612.77 810 791 156.5
B 4 173 54728 344.6 810 791 156.5
C 3 233 2666752 14744.4 778 781 180.8
C 3 234 12259 63.48 778 781 180.8
C 13 61 5563 26.45 778 781 180.8
D 10 199 258186 1367.34 789 771 188.3
D 12 110 76220 400.77 789 771 188.3
D 13 122 23596 121.24 789 771 188.3

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