ASTROSAT CZTI

Data Quality Report

Orbit 44072

Creation date: 2024-06-27T22:59:03.098427
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_029T01_9000005940_44072cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44072cztM0_level2_quad_clean.evt
Size (bytes)510,517,440128,600,640
Size486.9 MB 122.6 MB
Events in quadrant A5,880,310859,420
Events in quadrant B3,650,993895,846
Events in quadrant C3,739,491838,121
Events in quadrant D5,011,710749,528

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236021
B0165021
C0168171
D0204191

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79221932.436253%
B79211401.767454%
C7921921.161470%
D79223975.011361%

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 8492 7923 24 24 0.28% 0.30%
B 8491 7922 0 0 0.00% 0.00%
C 8491 7922 8 8 0.09% 0.10%
D 8492 7923 251 251 2.96% 3.17%

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 1222462 6428.91 922 901 190.0
A 15 222 873301 4591.33 922 901 190.0
A 12 227 108042 563.87 922 901 190.0
B 12 111 24698 128.5 925 895 185.2
B 11 111 22670 117.55 925 895 185.2
B 14 111 22419 116.19 925 895 185.2
C 14 254 113581 515.57 918 925 218.5
C 11 16 14271 61.08 918 925 218.5
C 4 254 10835 45.35 918 925 218.5
D 13 249 540101 2404.79 899 874 224.2
D 1 52 422628 1880.9 899 874 224.2
D 5 235 270005 1200.24 899 874 224.2

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