ASTROSAT CZTI

Data Quality Report

Orbit 44806

Creation date: 2024-06-27T23:06:47.597825
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/AS1A13_004T13_9000006022_44806cztM0_level2.fits modeM0/AS1A13_004T13_9000006022_44806cztM0_level2_quad_clean.evt
Size (bytes)196,603,20024,336,000
Size187.5 MB 23.2 MB
Events in quadrant A2,372,792159,346
Events in quadrant B952,361189,841
Events in quadrant C703,515182,738
Events in quadrant D3,122,26787,055

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081520
B038950
C032560
D0103840

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A160037123.187500%
B1601241.499063%
C160110.062461%
D160184852.966896%

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 1600 1600 388 388 24.25% 24.25%
B 1601 1601 22 22 1.37% 1.37%
C 1601 1601 1 1 0.06% 0.06%
D 1600 1600 878 878 54.88% 54.88%

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 15 223 1218522 34488.61 162 158 35.3
A 10 83 475953 13468.48 162 158 35.3
A 13 248 49171 1387.43 162 158 35.3
B 0 189 93327 2644.76 174 170 35.2
B 4 171 61655 1745.58 174 170 35.2
B 0 168 40487 1144.61 174 170 35.2
C 2 14 16900 391.23 173 174 42.8
C 1 3 4910 110.78 173 174 42.8
C 12 249 2155 46.34 173 174 42.8
D 13 187 1144029 32326.58 134 130 35.4
D 5 235 601000 16980.58 134 130 35.4
D 13 249 348106 9833.8 134 130 35.4

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