ASTROSAT CZTI

Data Quality Report

Orbit 44208

Creation date: 2024-06-27T23:00:33.055724
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_047T01_9000005970_44208cztM0_level2.fits modeM0/AS1A13_047T01_9000005970_44208cztM0_level2_quad_clean.evt
Size (bytes)552,663,360107,887,680
Size527.1 MB 102.9 MB
Events in quadrant A6,065,863719,179
Events in quadrant B4,176,672736,753
Events in quadrant C3,178,564725,261
Events in quadrant D6,506,124608,898

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233401
B0168731
C0143701
D0238731

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68423485.086232%
B68432904.237907%
C6843861.256759%
D684382712.085343%

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 7647 6843 122 122 1.60% 1.78%
B 7648 6843 103 103 1.35% 1.51%
C 7648 6844 4 4 0.05% 0.06%
D 7648 6844 660 660 8.63% 9.64%

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 1503456 9479.52 766 752 158.5
A 10 83 1436799 9059.02 766 752 158.5
A 2 79 121824 763.76 766 752 158.5
B 0 200 360587 2364.62 764 739 152.2
B 3 112 281355 1843.97 764 739 152.2
B 5 172 177114 1158.99 764 739 152.2
C 14 254 123493 678.73 760 762 180.8
C 4 254 47967 261.06 760 762 180.8
C 14 204 24605 131.86 760 762 180.8
D 12 16 1402208 7536.53 725 701 186.0
D 1 52 1127962 6061.78 725 701 186.0
D 2 249 895920 4813.99 725 701 186.0

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