ASTROSAT CZTI

Data Quality Report

Orbit 44308

Creation date: 2024-06-27T23:01:54.989676
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_004T13_9000005988_44308cztM0_level2.fits modeM0/AS1A13_004T13_9000005988_44308cztM0_level2_quad_clean.evt
Size (bytes)860,869,440200,056,320
Size821.0 MB 190.8 MB
Events in quadrant A8,396,4231,328,406
Events in quadrant B6,641,8021,364,866
Events in quadrant C5,899,9601,323,622
Events in quadrant D9,937,2291,154,824

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0352323
B0284423
C02676513
D0384732

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02620
B02620
C02620
D02620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A128011511.179595%
B128002211.726562%
C12799700.546918%
D128028466.608342%

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 13836 12803 4 4 0.03% 0.03%
B 13836 12802 71 71 0.51% 0.55%
C 13837 12802 23 23 0.17% 0.18%
D 13837 12804 669 669 4.83% 5.22%

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 2793309 9456.78 1418 1386 295.2
A 7 3 52162 171.99 1418 1386 295.2
A 15 223 34271 111.39 1418 1386 295.2
B 5 255 312669 1121.51 1409 1363 277.6
B 0 190 250616 897.96 1409 1363 277.6
B 0 219 134055 478.04 1409 1363 277.6
C 14 254 295363 898.21 1395 1397 327.3
C 3 233 89866 270.32 1395 1397 327.3
C 9 54 52481 156.09 1395 1397 327.3
D 13 171 969543 2840.54 1359 1319 340.9
D 13 249 813022 2381.34 1359 1319 340.9
D 1 20 786873 2304.63 1359 1319 340.9

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