ASTROSAT CZTI

Data Quality Report

Orbit 13343

Creation date: 2024-06-27T16:39:26.276314
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/AS1G08_082T01_9000001986_13343cztM0_level2.evt modeM0/AS1G08_082T01_9000001986_13343cztM0_level2_quad_clean.evt
Size (bytes)473,863,68085,924,800
Size451.9 MB 81.9 MB
Events in quadrant A3,333,697542,786
Events in quadrant B4,011,249548,398
Events in quadrant C3,297,029535,417
Events in quadrant D3,258,918513,363

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142872
B0164381
C0141381
D0143091

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6629711.071051%
B66292043.077387%
C6629480.724091%
D6629550.829688%

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 7850 6631 0 0 0.00% 0.00%
B 7850 6631 85 85 1.08% 1.28%
C 7850 6631 0 0 0.00% 0.00%
D 7850 6631 5 5 0.06% 0.08%

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 1 162 14015 76.74 859 841 171.7
A 8 15 8662 45.56 859 841 171.7
A 0 226 7696 39.93 859 841 171.7
B 3 64 251006 1571.19 853 833 159.2
B 10 245 213118 1333.23 853 833 159.2
B 0 230 160891 1005.23 853 833 159.2
C 3 233 92818 490.9 821 827 187.4
C 13 61 5957 27.38 821 827 187.4
C 14 234 2162 7.12 821 827 187.4
D 2 136 49856 251.63 818 796 195.0
D 1 52 47721 240.68 818 796 195.0
D 2 234 24176 119.92 818 796 195.0

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