ASTROSAT CZTI

Data Quality Report

Orbit 06023

Creation date: 2024-06-27T15:01:53.193765
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/AS1A02_006T01_9000000776_06023cztM0_level2.evt modeM0/AS1A02_006T01_9000000776_06023cztM0_level2_quad_clean.evt
Size (bytes)440,691,84090,728,640
Size420.3 MB 86.5 MB
Events in quadrant A3,723,226569,443
Events in quadrant B3,228,290588,772
Events in quadrant C3,036,357569,925
Events in quadrant D2,898,557547,840

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152633
B0141602
C0138352
D0138102

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6771450.664599%
B6771420.620292%
C6771180.265840%
D677160.088613%

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 9016 6773 7 7 0.08% 0.10%
B 9016 6773 2 2 0.02% 0.03%
C 9016 6773 0 0 0.00% 0.00%
D 9016 6773 1 1 0.01% 0.01%

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 13 34 688624 4335.72 778 762 158.7
A 15 234 35923 221.63 778 762 158.7
A 0 226 7302 41.22 778 762 158.7
B 3 64 51400 334.56 794 773 151.3
B 15 204 47226 306.98 794 773 151.3
B 12 111 15271 95.81 794 773 151.3
C 1 16 17043 90.05 770 774 180.7
C 8 208 7356 36.43 770 774 180.7
C 13 61 6170 29.87 770 774 180.7
D 2 206 13353 67.54 759 734 186.8
D 5 97 11815 59.31 759 734 186.8
D 2 33 8224 40.09 759 734 186.8

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