ASTROSAT CZTI

Data Quality Report

Orbit 43700

Creation date: 2024-06-27T22:54:42.821277
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_008T02_9000005900_43700cztM0_level2.fits modeM0/AS1A13_008T02_9000005900_43700cztM0_level2_quad_clean.evt
Size (bytes)1,808,262,720284,817,600
Size1.7 GB 271.6 MB
Events in quadrant A24,061,4821,863,739
Events in quadrant B10,717,9531,999,256
Events in quadrant C14,362,1741,846,947
Events in quadrant D16,351,9201,621,230

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0847733
B0440053
C0555473
D0616163

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03780
B03780
C03780
D03780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1874813527.211436%
B187485823.104331%
C1874814357.654150%
D18749199110.619233%

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 20468 18751 338 338 1.65% 1.80%
B 20468 18751 214 214 1.05% 1.14%
C 20468 18751 963 963 4.70% 5.14%
D 20469 18752 1305 1305 6.38% 6.96%

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 15 222 11879150 27606.93 2088 2042 430.2
A 10 83 2194214 5095.44 2088 2042 430.2
A 14 63 910841 2112.4 2088 2042 430.2
B 5 235 1191092 2830.85 2118 2050 420.0
B 12 3 279021 659.41 2118 2050 420.0
B 4 206 277823 656.55 2118 2050 420.0
C 15 157 4438622 9172.72 2043 2053 483.7
C 3 233 1215921 2509.7 2043 2053 483.7
C 14 96 201133 411.6 2043 2053 483.7
D 5 222 1575305 3047.52 2013 1947 516.3
D 7 80 813847 1572.61 2013 1947 516.3
D 5 235 813269 1571.49 2013 1947 516.3

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