ASTROSAT CZTI

Data Quality Report

Orbit 08306

Creation date: 2024-06-27T15:31:05.004142
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/AS1G07_080T03_9000001154_08306cztM0_level2.evt modeM0/AS1G07_080T03_9000001154_08306cztM0_level2_quad_clean.evt
Size (bytes)436,017,60075,801,600
Size415.8 MB 72.3 MB
Events in quadrant A3,171,309470,347
Events in quadrant B3,282,370476,484
Events in quadrant C3,028,414459,242
Events in quadrant D3,288,205443,238

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134113
B0136492
C0132244
D0139802

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6391871.361289%
B6391951.486465%
C6390620.970266%
D63911111.736817%

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 7591 6391 0 0 0.00% 0.00%
B 7591 6391 0 0 0.00% 0.00%
C 7591 6391 0 0 0.00% 0.00%
D 7591 6391 39 39 0.51% 0.61%

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 23 19265 112.53 812 797 164.1
A 15 239 10467 58.92 812 797 164.1
A 15 234 10449 58.81 812 797 164.1
B 0 214 60861 391.24 811 793 153.5
B 4 81 50164 321.57 811 793 153.5
B 12 111 15894 98.36 811 793 153.5
C 13 61 5874 28.65 774 775 177.9
C 9 54 4864 22.98 774 775 177.9
C 10 9 3660 16.21 774 775 177.9
D 2 14 134348 678.15 772 752 197.0
D 12 221 80538 405.01 772 752 197.0
D 6 225 36601 181.98 772 752 197.0

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