ASTROSAT CZTI

Data Quality Report

Orbit 44932

Creation date: 2024-06-27T23:08:07.092616
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_017T02_9000006032_44932cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44932cztM0_level2_quad_clean.evt
Size (bytes)1,969,217,280394,338,240
Size1.8 GB 376.1 MB
Events in quadrant A19,420,1972,683,871
Events in quadrant B14,035,2442,750,859
Events in quadrant C11,458,7212,702,482
Events in quadrant D26,027,1092,063,094

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05100
B05100
C05100
D05100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0776193
B0593243
C0526323
D0950609

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A252834521.787763%
B252847012.772504%
C252841430.565575%
D25283469318.561880%

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 26753 25287 30 30 0.11% 0.12%
B 26754 25288 210 210 0.78% 0.83%
C 26754 25288 34 34 0.13% 0.13%
D 26754 25286 3209 3209 11.99% 12.69%

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 8057067 13459.56 2866 2799 598.4
A 10 248 134544 220.16 2866 2799 598.4
A 7 3 69603 111.64 2866 2799 598.4
B 4 171 1011749 1807.64 2851 2765 558.2
B 0 183 368835 655.83 2851 2765 558.2
B 5 255 365681 650.18 2851 2765 558.2
C 1 3 208899 308.78 2828 2843 667.3
C 14 254 103792 151.28 2828 2843 667.3
C 0 207 45803 64.38 2828 2843 667.3
D 13 187 5414013 8589.27 2497 2422 630.0
D 1 52 2846771 4514.55 2497 2422 630.0
D 2 249 2831908 4490.96 2497 2422 630.0

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