ASTROSAT CZTI

Data Quality Report

Orbit 03259

Creation date: 2024-06-27T14:26:50.173262
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/AS1G05_221T01_9000000442_03259cztM0_level2.evt modeM0/AS1G05_221T01_9000000442_03259cztM0_level2_quad_clean.evt
Size (bytes)456,972,48070,136,640
Size435.8 MB 66.9 MB
Events in quadrant A3,103,202417,633
Events in quadrant B3,375,483420,117
Events in quadrant C3,408,009413,499
Events in quadrant D3,493,827401,991

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139713
B0142562
C0147582
D0152702

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67491241.837309%
B67491271.881760%
C67492103.111572%
D67491922.844866%

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 7614 6750 9 9 0.12% 0.13%
B 7614 6750 0 0 0.00% 0.00%
C 7614 6750 84 84 1.10% 1.24%
D 7614 6750 69 69 0.91% 1.02%

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 0 118 44197 273.03 780 763 159.1
A 3 1 20303 122.83 780 763 159.1
A 0 226 12371 72.97 780 763 159.1
B 15 204 246058 1608.95 796 777 152.4
B 3 0 28012 178.65 796 777 152.4
B 0 229 19468 122.61 796 777 152.4
C 1 192 210314 1180.61 762 764 177.5
C 12 175 176576 990.53 762 764 177.5
C 6 80 17267 92.98 762 764 177.5
D 13 223 313048 1713.64 756 733 182.3
D 13 114 92865 505.52 756 733 182.3
D 12 233 79161 430.33 756 733 182.3

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