ASTROSAT CZTI

Data Quality Report

Orbit 13745

Creation date: 2024-06-27T16:45:29.374096
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/AS1G08_062T01_9000002038_13745cztM0_level2.evt modeM0/AS1G08_062T01_9000002038_13745cztM0_level2_quad_clean.evt
Size (bytes)558,325,44085,677,120
Size532.5 MB 81.7 MB
Events in quadrant A3,767,798530,122
Events in quadrant B3,591,120520,132
Events in quadrant C3,314,535554,024
Events in quadrant D5,780,611522,093

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155013
B0149842
C0139052
D0219792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67091191.773737%
B6709991.475630%
C6709330.491877%
D67091552.310329%

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 7645 6711 55 55 0.72% 0.82%
B 7645 6711 18 18 0.24% 0.27%
C 7645 6711 0 0 0.00% 0.00%
D 7645 6711 65 65 0.85% 0.97%

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 9 143 459813 2681.98 833 813 171.1
A 15 69 57372 330.48 833 813 171.1
A 0 23 23225 130.96 833 813 171.1
B 0 219 114586 715.99 829 809 158.9
B 3 64 89888 560.57 829 809 158.9
B 4 173 50847 314.89 829 809 158.9
C 3 233 102474 529.62 823 828 191.9
C 13 61 5865 26.24 823 828 191.9
C 14 234 1940 5.79 823 828 191.9
D 13 168 2106435 10576.64 816 792 199.1
D 5 222 155110 775.14 816 792 199.1
D 1 3 148257 740.72 816 792 199.1

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