ASTROSAT CZTI

Data Quality Report

Orbit 14369

Creation date: 2024-06-27T16:54:08.950649
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/AS1A04_149T01_9000002118_14369cztM0_level2.evt modeM0/AS1A04_149T01_9000002118_14369cztM0_level2_quad_clean.evt
Size (bytes)460,673,280105,151,680
Size439.3 MB 100.3 MB
Events in quadrant A3,086,919688,249
Events in quadrant B3,561,687696,873
Events in quadrant C3,503,750680,655
Events in quadrant D3,350,604658,300

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135063
B0148342
C0143012
D0144152

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6603150.227169%
B6603971.469029%
C6603190.287748%
D6603550.832955%

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 7814 6606 0 0 0.00% 0.00%
B 7814 6606 45 45 0.58% 0.68%
C 7814 6606 0 0 0.00% 0.00%
D 7814 6606 37 37 0.47% 0.56%

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 12 189 26446 161.86 789 773 158.6
A 4 2 16456 98.87 789 773 158.6
A 0 226 6862 38.39 789 773 158.6
B 0 182 170587 1134.95 797 777 149.6
B 0 229 145711 968.69 797 777 149.6
B 0 189 46811 307.68 797 777 149.6
C 3 233 483537 2716.6 772 778 177.7
C 10 22 6111 30.01 772 778 177.7
C 13 61 5554 26.88 772 778 177.7
D 10 199 179324 997.85 762 746 179.0
D 2 120 153862 855.58 762 746 179.0
D 10 172 65623 362.52 762 746 179.0

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