ASTROSAT CZTI

Data Quality Report

Orbit 30806

Creation date: 2024-06-27T20:19:50.612312
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_071T25_9000004450_30806cztM0_level2.evt modeM0/AS1A10_071T25_9000004450_30806cztM0_level2_quad_clean.evt
Size (bytes)402,264,00063,141,120
Size383.6 MB 60.2 MB
Events in quadrant A2,155,627415,402
Events in quadrant B3,432,428412,839
Events in quadrant C3,387,175384,533
Events in quadrant D2,906,682387,343

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090831
B0134881
C0132901
D0114851

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4433631.421159%
B44341092.458277%
C44341663.743798%
D4434721.623816%

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 4433 4433 0 0 0.00% 0.00%
B 4434 4434 8 8 0.18% 0.18%
C 4434 4434 14 14 0.32% 0.32%
D 4434 4434 19 19 0.43% 0.43%

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 7903 65.28 558 548 112.7
A 3 137 5554 44.43 558 548 112.7
A 0 226 4773 37.5 558 548 112.7
B 6 159 1182417 11254.53 547 534 105.0
B 0 190 29750 278.21 547 534 105.0
B 5 255 13575 124.18 547 534 105.0
C 3 233 1205472 9894.27 521 524 121.8
C 14 238 84325 688.12 521 524 121.8
C 0 10 48639 395.09 521 524 121.8
D 8 195 767642 6036.21 533 521 127.1
D 13 138 33667 260.81 533 521 127.1
D 10 253 32493 251.58 533 521 127.1

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