ASTROSAT CZTI

Data Quality Report

Orbit 05398

Creation date: 2024-06-27T14:54:45.042168
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/AS1G05_214T01_9000000684_05398cztM0_level2.evt modeM0/AS1G05_214T01_9000000684_05398cztM0_level2_quad_clean.evt
Size (bytes)494,455,68075,369,600
Size471.5 MB 71.9 MB
Events in quadrant A3,171,929470,427
Events in quadrant B3,410,508477,716
Events in quadrant C3,609,042470,389
Events in quadrant D4,365,335433,562

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133842
B0141091
C0147701
D0171431

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6165961.557178%
B61651061.719384%
C61651141.849148%
D61652183.536091%

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 7460 6166 44 44 0.59% 0.71%
B 7460 6166 27 27 0.36% 0.44%
C 7460 6166 85 85 1.14% 1.38%
D 7460 6166 150 150 2.01% 2.43%

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 0 50 228639 1483.77 758 742 153.6
A 13 6 13951 86.0 758 742 153.6
A 0 226 8207 48.6 758 742 153.6
B 10 16 202133 1380.69 771 755 145.9
B 0 219 145914 995.24 771 755 145.9
B 4 48 29328 195.9 771 755 145.9
C 9 247 447804 2609.34 736 742 171.3
C 1 16 259132 1508.13 736 742 171.3
C 14 67 29051 165.23 736 742 171.3
D 2 63 1360386 7544.52 726 705 180.2
D 2 33 97768 538.58 726 705 180.2
D 4 95 69202 380.07 726 705 180.2

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