ASTROSAT CZTI

Data Quality Report

Orbit 13200

Creation date: 2024-06-27T16:37:37.292375
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/AS1A04_104T04_9000001966_13200cztM0_level2.evt modeM0/AS1A04_104T04_9000001966_13200cztM0_level2_quad_clean.evt
Size (bytes)626,002,56099,273,600
Size597.0 MB 94.7 MB
Events in quadrant A3,036,111672,000
Events in quadrant B4,003,118679,955
Events in quadrant C3,027,303690,134
Events in quadrant D8,477,500536,460

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129613
B0158432
C0129252
D0294872

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6116160.261609%
B61163435.608241%
C6116120.196207%
D6116189030.902551%

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 7472 6118 0 0 0.00% 0.00%
B 7472 6118 191 191 2.56% 3.12%
C 7472 6118 0 0 0.00% 0.00%
D 7472 6118 1428 1428 19.11% 23.34%

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 1 162 25766 158.71 773 758 157.6
A 4 2 9073 52.77 773 758 157.6
A 1 178 8827 51.21 773 758 157.6
B 4 239 816885 5657.22 767 748 144.3
B 4 173 64431 441.43 767 748 144.3
B 3 64 48088 328.15 767 748 144.3
C 15 208 43537 244.56 764 772 174.9
C 13 61 5684 28.09 764 772 174.9
C 3 233 2319 8.85 764 772 174.9
D 13 122 5542711 36018.41 642 623 153.9
D 1 52 410546 2664.12 642 623 153.9
D 2 234 22893 144.73 642 623 153.9

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