ASTROSAT CZTI

Data Quality Report

Orbit 44725

Creation date: 2024-06-27T23:05:47.095608
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_009T01_9000006016_44725cztM0_level2.fits modeM0/AS1A13_009T01_9000006016_44725cztM0_level2_quad_clean.evt
Size (bytes)635,601,600110,148,480
Size606.2 MB 105.0 MB
Events in quadrant A7,918,503696,692
Events in quadrant B3,835,370784,376
Events in quadrant C3,157,618752,829
Events in quadrant D8,054,622596,348

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290250
B0163530
C0148900
D0290961

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A725192612.770652%
B72511161.599779%
C7252120.165472%
D7251110815.280651%

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 7251 7251 726 726 10.01% 10.01%
B 7251 7251 60 60 0.83% 0.83%
C 7252 7252 3 3 0.04% 0.04%
D 7251 7251 908 908 12.52% 12.52%

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 3050741 18918.12 772 755 161.2
A 10 83 1817579 11269.2 772 755 161.2
A 13 248 36788 223.5 772 755 161.2
B 0 189 282543 1754.29 799 773 160.6
B 4 171 194047 1203.32 799 773 160.6
B 0 190 116494 720.48 799 773 160.6
C 15 208 31688 164.58 789 794 187.7
C 0 207 18022 91.77 789 794 187.7
C 12 2 12989 64.96 789 794 187.7
D 13 174 3285208 17447.06 746 724 188.3
D 13 249 576773 3059.95 746 724 188.3
D 1 52 452707 2400.92 746 724 188.3

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