ASTROSAT CZTI

Data Quality Report

Orbit 48407

Creation date: 2024-09-09T21:11:55.564172
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_9000006426_48407cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48407cztM0_level2_quad_clean.evt
Size (bytes)552,216,960118,200,960
Size526.6 MB 112.7 MB
Events in quadrant A8,041,707753,905
Events in quadrant B4,354,875781,203
Events in quadrant C3,546,825792,877
Events in quadrant D3,906,740720,973

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0294970
B0183600
C0163430
D0172770

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76176077.969017%
B76185086.668417%
C76171251.641066%
D76171742.284364%

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 7617 7617 106 106 1.39% 1.39%
B 7618 7618 110 110 1.44% 1.44%
C 7617 7617 0 0 0.00% 0.00%
D 7617 7617 32 32 0.42% 0.42%

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 4298363 23252.02 872 853 184.8
A 13 248 372987 2013.46 872 853 184.8
A 13 254 14661 74.71 872 853 184.8
B 12 16 799346 4541.87 868 840 175.8
B 0 183 39915 222.26 868 840 175.8
B 12 111 22624 123.91 868 840 175.8
C 15 208 128077 606.06 873 876 209.9
C 14 254 9007 38.74 873 876 209.9
C 12 2 6290 25.8 873 876 209.9
D 2 249 206684 922.99 877 853 223.0
D 2 165 108827 484.18 877 853 223.0
D 5 222 91609 406.97 877 853 223.0

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