ASTROSAT CZTI

Data Quality Report

Orbit 31429

Creation date: 2024-06-27T20:28:21.664942
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_094T32_9000004570_31429cztM0_level2.evt modeM0/AS1A10_094T32_9000004570_31429cztM0_level2_quad_clean.evt
Size (bytes)216,501,12050,117,760
Size206.5 MB 47.8 MB
Events in quadrant A1,274,655337,315
Events in quadrant B2,198,093332,501
Events in quadrant C1,362,592331,837
Events in quadrant D1,544,416330,974

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054401
B083151
C056131
D061621

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A25721656.415241%
B257227710.769829%
C257227610.730949%
D25721566.065319%

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 2927 2572 0 0 0.00% 0.00%
B 2927 2572 29 29 0.99% 1.13%
C 2927 2572 0 0 0.00% 0.00%
D 2927 2572 16 16 0.55% 0.62%

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 5272 73.77 328 320 67.1
A 12 16 5015 69.95 328 320 67.1
A 3 137 3449 46.62 328 320 67.1
B 6 159 686183 10915.12 317 307 62.8
B 12 1 218050 3465.19 317 307 62.8
B 4 80 28694 451.75 317 307 62.8
C 14 238 76008 1015.38 315 315 74.5
C 14 254 34959 464.73 315 315 74.5
C 3 233 14120 185.19 315 315 74.5
D 8 195 141054 1784.68 326 315 78.9
D 12 218 78170 987.26 326 315 78.9
D 2 250 28134 352.77 326 315 78.9

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