ASTROSAT CZTI

Data Quality Report

Orbit 20240715_A13_080T03_9000006336_level2

Creation date: 2024-07-18T08:55:25.177974
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_080T03_9000006336cztM0_level2.fits modeM0/AS1A13_080T03_9000006336cztM0_level2_quad_clean.evt
Size (bytes)468,028,800600,477,120
Size446.3 MB 572.7 MB
Events in quadrant A2,887,6864,200,847
Events in quadrant B2,874,2464,355,141
Events in quadrant C2,990,3184,274,444
Events in quadrant D1,457,7421,410,660

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0550
B0550
C0550
D0550

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02256100
B01320010
C01166320
D04016230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011660
B011660
C011660
D011660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5750632965.731576%
B5750812242.128400%
C575062950.512990%
D575083647263.420741%

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 62862 57488 0 0 0.00% 0.00%
B 62862 57475 0 0 0.00% 0.00%
C 62862 57500 0 0 0.00% 0.00%
D 62862 55636 0 0 0.00% 0.00%

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 7 110 2347 8.47 752 703 194.0
A 0 29 2186 7.64 752 703 194.0
A 14 95 2150 7.46 752 703 194.0
B 2 9 2828 13.92 760 723 151.2
B 2 8 2258 10.15 760 723 151.2
B 3 17 2111 9.18 760 723 151.2
C 1 81 2366 7.96 789 735 204.9
C 3 202 2287 7.57 789 735 204.9
C 1 80 2253 7.41 789 735 204.9
D 10 113 1103 6.07 418 378 119.5
D 15 47 1082 5.89 418 378 119.5
D 3 14 1082 5.89 418 378 119.5

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