ASTROSAT CZTI

Data Quality Report

Orbit 14230

Creation date: 2024-06-27T16:52:14.037410
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_084T01_9000002100_14230cztM0_level2.evt modeM0/AS1G08_084T01_9000002100_14230cztM0_level2_quad_clean.evt
Size (bytes)500,492,16091,791,360
Size477.3 MB 87.5 MB
Events in quadrant A3,149,820594,748
Events in quadrant B3,658,887593,603
Events in quadrant C3,483,104578,891
Events in quadrant D4,426,048560,655

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01351
B01351
C01340
D01351

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013485178
B015085163
C014331190
D017742258

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6467901.391681%
B64742423.738029%
C6471831.282646%
D64651852.861562%

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 7668 6479 0 0 0.00% 0.00%
B 7668 6480 87 87 1.13% 1.34%
C 7668 6479 1 1 0.01% 0.02%
D 7668 6476 76 76 0.99% 1.17%

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 52260 323.33 794 777 159.2
A 8 15 34394 211.13 794 777 159.2
A 0 226 7236 40.56 794 777 159.2
B 0 229 369164 2502.34 782 763 147.2
B 0 182 98471 663.67 782 763 147.2
B 0 189 70914 476.5 782 763 147.2
C 3 233 488991 2777.82 765 768 175.8
C 14 234 9937 52.17 765 768 175.8
C 13 61 5693 28.02 765 768 175.8
D 5 222 437854 2438.99 760 744 179.2
D 8 195 326665 1818.58 760 744 179.2
D 13 122 314295 1749.55 760 744 179.2

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