ASTROSAT CZTI

Data Quality Report

Orbit 30217

Creation date: 2024-06-27T20:13:15.088180
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_071T16_9000004348_30217cztM0_level2.evt modeM0/AS1A10_071T16_9000004348_30217cztM0_level2_quad_clean.evt
Size (bytes)917,801,280148,368,960
Size875.3 MB 141.5 MB
Events in quadrant A5,280,602951,732
Events in quadrant B8,376,944952,578
Events in quadrant C6,173,993911,131
Events in quadrant D7,203,371898,334

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230142
B0338152
C0252522
D0283752

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02300
B02300
C02300
D02300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112651241.100755%
B112651991.766534%
C112662011.784129%
D112662191.943902%

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 12435 11267 0 0 0.00% 0.00%
B 12435 11266 0 0 0.00% 0.00%
C 12436 11267 2 2 0.02% 0.02%
D 12436 11266 135 135 1.09% 1.20%

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 8 192 25462 87.64 1362 1330 275.3
A 13 254 20229 68.64 1362 1330 275.3
A 3 137 14230 46.85 1362 1330 275.3
B 6 159 3074136 11823.03 1342 1302 259.9
B 12 111 33711 124.7 1342 1302 259.9
B 11 111 30920 113.96 1342 1302 259.9
C 3 233 806036 2580.91 1307 1315 311.8
C 14 238 210031 669.4 1307 1315 311.8
C 15 208 34288 105.75 1307 1315 311.8
D 1 52 1130547 3592.82 1309 1277 314.3
D 7 223 452633 1436.01 1309 1277 314.3
D 8 195 331697 1051.25 1309 1277 314.3

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