ASTROSAT CZTI

Data Quality Report

Orbit 47377

Creation date: 2024-07-02T10:42:58.180473
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_093T25_9000006324_47377cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47377cztM0_level2_quad_clean.evt
Size (bytes)575,167,680126,691,200
Size548.5 MB 120.8 MB
Events in quadrant A7,954,506821,784
Events in quadrant B4,177,983866,381
Events in quadrant C3,742,105832,595
Events in quadrant D4,796,837759,297

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0292074
B0178053
C0169563
D0199503

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79904405.506884%
B79902643.304130%
C79901271.589487%
D79912272.840696%

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 9115 7990 21 21 0.23% 0.26%
B 9115 7990 6 6 0.07% 0.08%
C 9115 7993 4 4 0.04% 0.05%
D 9116 7993 131 131 1.44% 1.64%

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 4153012 21202.29 932 911 195.8
A 9 191 142976 725.44 932 911 195.8
A 14 248 25036 123.19 932 911 195.8
B 4 171 340550 1784.67 940 908 190.3
B 5 255 32670 166.9 940 908 190.3
B 12 111 25030 126.75 940 908 190.3
C 0 207 85621 381.77 928 934 221.8
C 1 3 25583 111.12 928 934 221.8
C 3 233 13413 56.25 928 934 221.8
D 12 2 821582 3523.66 921 894 232.9
D 2 249 203780 871.1 921 894 232.9
D 7 38 98973 421.11 921 894 232.9

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