ASTROSAT CZTI

Data Quality Report

Orbit 29241

Creation date: 2024-06-27T20:01:52.539503
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/AS1T03_272T01_9000004204_29241cztM0_level2.evt modeM0/AS1T03_272T01_9000004204_29241cztM0_level2_quad_clean.evt
Size (bytes)779,878,08067,812,480
Size743.7 MB 64.7 MB
Events in quadrant A2,973,422443,652
Events in quadrant B3,634,437443,018
Events in quadrant C7,000,756399,171
Events in quadrant D9,616,314357,771

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122561
B0145091
C0249431
D0326261

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58491001.709694%
B58502263.863248%
C585084314.410256%
D5850196733.623932%

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 7024 5850 0 0 0.00% 0.00%
B 7025 5851 58 58 0.83% 0.99%
C 7025 5851 397 397 5.65% 6.79%
D 7025 5851 2184 2184 31.09% 37.33%

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 13 254 11635 71.34 770 755 152.5
A 3 137 7125 41.77 770 755 152.5
A 0 226 6594 38.29 770 755 152.5
B 0 229 331680 2347.27 756 739 141.0
B 0 189 112563 793.13 756 739 141.0
B 0 183 102470 721.55 756 739 141.0
C 3 233 4114184 25453.37 705 710 161.6
C 14 238 114563 704.5 705 710 161.6
C 2 114 13868 81.42 705 710 161.6
D 7 223 5608302 35005.95 688 670 160.2
D 1 52 701416 4374.45 688 670 160.2
D 8 195 405399 2526.54 688 670 160.2

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