ASTROSAT CZTI

Data Quality Report

Orbit 46270

Creation date: 2024-06-27T23:21:04.738693
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_071T10_9000006192_46270cztM0_level2.fits modeM0/AS1A13_071T10_9000006192_46270cztM0_level2_quad_clean.evt
Size (bytes)486,665,280108,852,480
Size464.1 MB 103.8 MB
Events in quadrant A5,628,643727,938
Events in quadrant B4,212,939756,407
Events in quadrant C2,932,051725,284
Events in quadrant D4,744,529639,761

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0205801
B0169591
C0132631
D0184691

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64032263.529596%
B64041922.998126%
C64041101.717676%
D64043815.949407%

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 7483 6404 0 0 0.00% 0.00%
B 7484 6405 30 30 0.40% 0.47%
C 7484 6405 17 17 0.23% 0.27%
D 7484 6405 304 304 4.06% 4.75%

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 2759762 18050.53 740 724 152.9
A 13 254 9726 58.89 740 724 152.9
A 3 137 8571 51.34 740 724 152.9
B 3 112 1110916 7678.7 735 711 144.6
B 5 172 58661 400.81 735 711 144.6
B 0 190 47905 326.42 735 711 144.6
C 12 2 83247 484.06 730 731 170.5
C 13 61 4958 24.79 730 731 170.5
C 14 67 2699 11.54 730 731 170.5
D 13 249 1025073 5724.44 719 696 178.9
D 1 52 548409 3060.74 719 696 178.9
D 13 171 227711 1268.61 719 696 178.9

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