ASTROSAT CZTI

Data Quality Report

Orbit 28792

Creation date: 2024-06-27T19:56:24.012123
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/AS1A10_103T01_9000004132_28792cztM0_level2.evt modeM0/AS1A10_103T01_9000004132_28792cztM0_level2_quad_clean.evt
Size (bytes)647,429,760100,468,800
Size617.4 MB 95.8 MB
Events in quadrant A3,255,482665,897
Events in quadrant B3,773,571680,250
Events in quadrant C5,629,594645,741
Events in quadrant D6,525,505613,042

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131951
B0148391
C0210681
D0239791

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6266590.941590%
B62652043.256185%
C62655789.225858%
D62655498.762969%

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 7506 6266 0 0 0.00% 0.00%
B 7505 6265 94 94 1.25% 1.50%
C 7505 6265 200 200 2.66% 3.19%
D 7505 6265 515 515 6.86% 8.22%

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 15 174 17358 99.45 832 816 166.3
A 14 239 15412 87.75 832 816 166.3
A 13 254 11572 64.66 832 816 166.3
B 5 255 354322 2345.0 820 800 150.8
B 5 172 113536 747.81 820 800 150.8
B 10 246 26653 171.49 820 800 150.8
C 3 233 2115054 11395.68 801 810 185.5
C 14 238 163752 878.25 801 810 185.5
C 4 254 152752 818.96 801 810 185.5
D 1 52 1713162 9050.97 804 785 189.2
D 8 195 812815 4292.08 804 785 189.2
D 13 104 787716 4159.42 804 785 189.2

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