ASTROSAT CZTI

Data Quality Report

Orbit 13047

Creation date: 2024-06-27T16:35:44.283254
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/AS1A04_149T01_9000001918_13047cztM0_level2.evt modeM0/AS1A04_149T01_9000001918_13047cztM0_level2_quad_clean.evt
Size (bytes)637,536,96094,161,600
Size608.0 MB 89.8 MB
Events in quadrant A3,827,017598,678
Events in quadrant B7,451,236527,924
Events in quadrant C3,549,329602,668
Events in quadrant D3,949,195577,780

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165073
B0273403
C0161143
D0171563

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78121862.380952%
B7812181223.195084%
C78121181.510497%
D78121391.779314%

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 8048 7815 2 2 0.02% 0.03%
B 8048 7815 1006 1006 12.50% 12.87%
C 8048 7815 0 0 0.00% 0.00%
D 8048 7815 23 23 0.29% 0.29%

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 12 189 112948 594.34 924 900 188.5
A 8 15 55692 290.64 924 900 188.5
A 0 23 31390 161.73 924 900 188.5
B 4 239 2912141 18735.07 810 788 155.4
B 0 85 1039699 6685.57 810 788 155.4
B 0 219 125960 805.5 810 788 155.4
C 8 128 11520 50.68 905 907 209.4
C 13 61 6552 26.96 905 907 209.4
C 8 112 6250 25.52 905 907 209.4
D 8 195 236359 1089.83 902 874 216.1
D 1 52 191871 883.94 902 874 216.1
D 2 69 46389 210.64 902 874 216.1

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