ASTROSAT CZTI

Data Quality Report

Orbit 44769

Creation date: 2024-06-27T23:06:19.397689
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_004T12_9000006020_44769cztM0_level2.fits modeM0/AS1A13_004T12_9000006020_44769cztM0_level2_quad_clean.evt
Size (bytes)663,033,600139,325,760
Size632.3 MB 132.9 MB
Events in quadrant A6,299,922925,014
Events in quadrant B5,129,168942,093
Events in quadrant C4,381,439930,720
Events in quadrant D8,049,413807,713

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265761
B0213371
C0193231
D0300731

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A88222653.003854%
B88223874.386760%
C88221141.292224%
D88227278.240762%

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 8867 8823 16 16 0.18% 0.18%
B 8867 8823 80 80 0.90% 0.91%
C 8867 8823 53 53 0.60% 0.60%
D 8867 8823 561 561 6.33% 6.36%

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 2272616 10744.8 1006 980 211.4
A 13 248 142531 669.53 1006 980 211.4
A 3 137 12073 52.47 1006 980 211.4
B 0 189 563007 2852.15 999 967 197.1
B 5 255 355231 1797.76 999 967 197.1
B 7 221 121276 610.52 999 967 197.1
C 14 254 270612 1149.16 997 1001 234.6
C 1 3 73742 310.04 997 1001 234.6
C 12 2 64615 271.14 997 1001 234.6
D 1 52 1632407 6767.0 966 935 241.1
D 7 38 925397 3834.47 966 935 241.1
D 5 235 582222 2411.05 966 935 241.1

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