ASTROSAT CZTI

Data Quality Report

Orbit 32085

Creation date: 2024-06-27T20:36:19.367511
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/AS1C06_002T04_9000004684_32085cztM0_level2.evt modeM0/AS1C06_002T04_9000004684_32085cztM0_level2_quad_clean.evt
Size (bytes)1,658,272,320198,218,880
Size1.5 GB 189.0 MB
Events in quadrant A5,783,9291,444,122
Events in quadrant B24,282,2631,053,583
Events in quadrant C7,252,0251,351,260
Events in quadrant D12,064,7241,289,453

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253972
B0807153
C0295282
D0445402

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02520
B02520
C02520
D02520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12464340.272786%
B12463808064.831902%
C124644763.818999%
D12464147511.834082%

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 13869 12466 0 0 0.00% 0.00%
B 13868 12463 6879 6879 49.60% 55.20%
C 13869 12465 68 68 0.49% 0.55%
D 13869 12464 1303 1303 9.40% 10.45%

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 24617 78.23 1485 1454 296.1
A 13 6 24285 77.11 1485 1454 296.1
A 15 174 22810 72.13 1485 1454 296.1
B 10 245 16624514 76072.98 1151 1121 218.5
B 6 159 2884329 13194.31 1151 1121 218.5
B 5 172 98015 443.41 1151 1121 218.5
C 3 233 592444 1806.28 1404 1413 327.2
C 0 10 448126 1365.23 1404 1413 327.2
C 14 238 401900 1223.95 1404 1413 327.2
D 12 227 3389497 10190.47 1390 1351 332.5
D 8 195 1966567 5910.74 1390 1351 332.5
D 12 233 944305 2836.11 1390 1351 332.5

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