ASTROSAT CZTI

Data Quality Report

Orbit 25347

Creation date: 2024-06-27T19:16:37.490656
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/AS1A09_059T01_9000003706_25347cztM0_level2.evt modeM0/AS1A09_059T01_9000003706_25347cztM0_level2_quad_clean.evt
Size (bytes)505,108,800118,313,280
Size481.7 MB 112.8 MB
Events in quadrant A3,754,010811,314
Events in quadrant B3,619,773803,670
Events in quadrant C3,447,894771,475
Events in quadrant D4,051,010760,130

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154400
B0145690
C0139390
D0162630

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6264971.548531%
B62642554.070881%
C62641522.426564%
D62641342.139208%

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 7429 6265 0 0 0.00% 0.00%
B 7429 6265 105 105 1.41% 1.68%
C 7429 6265 12 12 0.16% 0.19%
D 7429 6265 50 50 0.67% 0.80%

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 15 173 554465 3357.46 830 814 164.9
A 13 254 9407 52.11 830 814 164.9
A 3 137 7146 38.4 830 814 164.9
B 3 112 435399 2876.77 806 788 151.1
B 12 111 17860 113.0 806 788 151.1
B 11 111 15849 99.69 806 788 151.1
C 9 54 214906 1174.84 791 797 182.2
C 14 238 127508 695.28 791 797 182.2
C 0 207 14837 77.04 791 797 182.2
D 8 195 510856 2660.42 808 787 191.7
D 7 238 129092 669.21 808 787 191.7
D 12 233 123969 642.49 808 787 191.7

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