ASTROSAT CZTI

Data Quality Report

Orbit 45709

Creation date: 2024-06-27T23:15:16.906844
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/AS1A13_028T01_9000006122_45709cztM0_level2.fits modeM0/AS1A13_028T01_9000006122_45709cztM0_level2_quad_clean.evt
Size (bytes)596,831,040114,649,920
Size569.2 MB 109.3 MB
Events in quadrant A6,470,521768,797
Events in quadrant B4,102,399798,169
Events in quadrant C5,315,693763,496
Events in quadrant D5,646,235639,645

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0238582
B0167532
C0204982
D0217682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71973645.057663%
B71972503.473670%
C71974706.530499%
D719791212.671947%

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 7807 7197 2 2 0.03% 0.03%
B 7807 7197 50 50 0.64% 0.69%
C 7807 7197 295 295 3.78% 4.10%
D 7807 7197 712 712 9.12% 9.89%

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 10 83 3219967 18430.72 834 813 174.7
A 13 254 12398 66.33 834 813 174.7
A 3 137 9493 49.7 834 813 174.7
B 3 112 377536 2246.03 837 810 167.7
B 5 172 184189 1093.3 837 810 167.7
B 0 183 52301 306.99 837 810 167.7
C 9 54 1904400 9870.16 816 819 192.9
C 1 241 90155 463.21 816 819 192.9
C 0 207 60666 310.31 816 819 192.9
D 13 249 2133106 10968.62 776 750 194.4
D 2 249 245216 1257.51 776 750 194.4
D 5 171 68125 346.57 776 750 194.4

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