ASTROSAT CZTI

Data Quality Report

Orbit 45780

Creation date: 2024-06-27T23:16:06.369974
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/AS1T05_183T01_9000006124_45780cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45780cztM0_level2_quad_clean.evt
Size (bytes)703,851,84097,162,560
Size671.2 MB 92.7 MB
Events in quadrant A6,204,246682,670
Events in quadrant B5,468,785697,516
Events in quadrant C3,060,272716,014
Events in quadrant D10,845,051415,799

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223761
B0206211
C0132361
D0364251

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61524517.330949%
B61525268.550065%
C61521061.723017%
D6153270243.913538%

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 7227 6153 137 137 1.90% 2.23%
B 7227 6153 209 209 2.89% 3.40%
C 7227 6153 9 9 0.12% 0.15%
D 7228 6154 2508 2508 34.70% 40.75%

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 10 83 2816641 18538.35 730 712 151.9
A 13 248 397686 2613.43 730 712 151.9
A 4 0 124463 814.7 730 712 151.9
B 3 112 1850403 12942.79 720 698 142.9
B 5 172 158101 1101.38 720 698 142.9
B 15 201 146385 1019.4 720 698 142.9
C 14 254 92383 540.59 724 728 169.5
C 12 2 91235 533.82 724 728 169.5
C 2 14 36093 208.59 724 728 169.5
D 11 241 6642999 41519.44 623 603 160.0
D 2 249 694851 4339.52 623 603 160.0
D 1 52 454949 2839.97 623 603 160.0

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