ASTROSAT CZTI

Data Quality Report

Orbit 45752

Creation date: 2024-06-27T23:15:46.565792
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/AS1T05_183T01_9000006124_45752cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45752cztM0_level2_quad_clean.evt
Size (bytes)568,465,920109,126,080
Size542.1 MB 104.1 MB
Events in quadrant A6,170,322734,580
Events in quadrant B5,552,226705,835
Events in quadrant C3,473,044747,405
Events in quadrant D5,326,643648,132

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225962
B0211141
C0151151
D0203251

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67152403.574088%
B671668310.169744%
C67161241.846337%
D67165608.338297%

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 7535 6716 1 1 0.01% 0.01%
B 7536 6717 302 302 4.01% 4.50%
C 7536 6717 66 66 0.88% 0.98%
D 7536 6717 399 399 5.29% 5.94%

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 10 83 3042633 18801.85 780 765 161.8
A 14 235 21312 127.0 780 765 161.8
A 0 243 17399 102.82 780 765 161.8
B 3 112 2012646 13496.09 752 729 149.1
B 12 3 114230 761.37 752 729 149.1
B 5 172 100203 667.28 752 729 149.1
C 14 254 426194 2368.25 764 768 179.6
C 1 3 45712 250.19 764 768 179.6
C 0 207 11797 61.4 764 768 179.6
D 1 52 1090565 5683.7 750 727 191.7
D 13 249 511761 2665.14 750 727 191.7
D 1 47 337215 1754.85 750 727 191.7

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