ASTROSAT CZTI

Data Quality Report

Orbit 13231

Creation date: 2024-06-27T16:38:08.609861
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_216T01_9000001968_13231cztM0_level2.evt modeM0/AS1A04_216T01_9000001968_13231cztM0_level2_quad_clean.evt
Size (bytes)477,100,800103,838,400
Size455.0 MB 99.0 MB
Events in quadrant A3,118,702685,375
Events in quadrant B4,887,946657,229
Events in quadrant C3,058,834691,292
Events in quadrant D2,934,501650,020

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137083
B0189432
C0135822
D0135772

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6605150.227101%
B660575111.370174%
C6605180.272521%
D6605120.181681%

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 7726 6607 0 0 0.00% 0.00%
B 7726 6607 471 471 6.10% 7.13%
C 7726 6607 5 5 0.06% 0.08%
D 7726 6607 2 2 0.03% 0.03%

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 79148 498.06 775 759 157.4
A 15 239 27895 172.41 775 759 157.4
A 1 162 14548 87.61 775 759 157.4
B 4 239 1874193 13339.39 752 732 140.4
B 3 209 24179 166.95 752 732 140.4
B 3 64 23897 164.94 752 732 140.4
C 15 208 49301 274.55 770 772 176.8
C 13 61 5622 27.44 770 772 176.8
C 14 234 4473 20.94 770 772 176.8
D 1 52 22703 121.42 752 729 181.0
D 2 234 22255 118.95 752 729 181.0
D 8 195 21839 116.65 752 729 181.0

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