ASTROSAT CZTI

Data Quality Report

Orbit 07800

Creation date: 2024-06-27T15:24:10.318870
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/AS1G06_032T01_9000001074_07800cztM0_level2.evt modeM0/AS1G06_032T01_9000001074_07800cztM0_level2_quad_clean.evt
Size (bytes)436,216,320105,180,480
Size416.0 MB 100.3 MB
Events in quadrant A2,979,263684,773
Events in quadrant B3,159,081717,124
Events in quadrant C3,385,402686,828
Events in quadrant D3,246,003644,264

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131923
B0135392
C0142622
D0141262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A648670.107925%
B6486180.277521%
C6486480.740056%
D6486741.140919%

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 7761 6487 0 0 0.00% 0.00%
B 7761 6487 0 0 0.00% 0.00%
C 7761 6487 37 37 0.48% 0.57%
D 7761 6487 62 62 0.80% 0.96%

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 0 226 7089 40.45 772 755 156.6
A 12 194 6794 38.57 772 755 156.6
A 13 14 4545 24.2 772 755 156.6
B 0 214 22644 147.91 793 775 147.9
B 4 81 22444 146.55 793 775 147.9
B 0 219 18461 119.62 793 775 147.9
C 4 254 352926 1977.75 771 776 178.1
C 1 16 13557 71.78 771 776 178.1
C 9 243 6462 31.93 771 776 178.1
D 2 152 238679 1305.34 756 732 182.3
D 2 14 130727 713.13 756 732 182.3
D 13 104 21060 111.52 756 732 182.3

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