ASTROSAT CZTI

Data Quality Report

Orbit 30445

Creation date: 2024-06-27T20:15:21.025384
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/AS1A10_121T02_9000004378_30445cztM0_level2.evt modeM0/AS1A10_121T02_9000004378_30445cztM0_level2_quad_clean.evt
Size (bytes)723,317,760104,777,280
Size689.8 MB 99.9 MB
Events in quadrant A4,662,297664,675
Events in quadrant B5,936,209688,519
Events in quadrant C3,982,635672,997
Events in quadrant D6,819,803626,933

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186732
B0229792
C0166882
D0254552

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74613474.650851%
B74622483.323506%
C74622643.537925%
D7462125316.791745%

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 8475 7460 297 297 3.50% 3.98%
B 8476 7461 2 2 0.02% 0.03%
C 8476 7461 12 12 0.14% 0.16%
D 8476 7461 1030 1030 12.15% 13.81%

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 13 1041261 5619.08 914 895 185.1
A 4 2 68370 364.43 914 895 185.1
A 8 192 22266 115.42 914 895 185.1
B 6 159 2211957 12441.2 921 897 177.7
B 0 229 40600 223.4 921 897 177.7
B 15 33 30838 168.47 921 897 177.7
C 3 233 219705 1032.91 895 901 211.8
C 14 238 147056 689.95 895 901 211.8
C 0 10 100763 471.42 895 901 211.8
D 13 104 3007230 13951.89 824 806 215.5
D 8 195 211064 975.74 824 806 215.5
D 13 249 199818 923.55 824 806 215.5

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