ASTROSAT CZTI

Data Quality Report

Orbit 32154

Creation date: 2024-06-27T20:37:04.433194
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_053T11_9000004688_32154cztM0_level2.evt modeM0/AS1A10_053T11_9000004688_32154cztM0_level2_quad_clean.evt
Size (bytes)326,877,12035,585,280
Size311.7 MB 33.9 MB
Events in quadrant A1,265,751242,086
Events in quadrant B2,142,554239,447
Events in quadrant C3,725,028191,482
Events in quadrant D2,589,357217,911

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071421841
B0113263210
C0166623819
D0116642236

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07323
B07321
C07218
D07123

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A114044886133021646
B1-1-1
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A263710.037922%
B2555160.626223%
C253594037.080868%
D264031712.007576%

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 3979 2781 0 0 0.00% 0.00%
B 3970 2709 2 2 0.05% 0.07%
C 3975 2683 804 804 20.23% 29.97%
D 3982 2802 309 309 7.76% 11.03%

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 12 189 9608 139.1 325 319 66.8
A 13 254 4229 58.55 325 319 66.8
A 3 137 3176 42.78 325 319 66.8
B 6 159 654268 10859.35 309 302 60.2
B 10 245 176838 2931.45 309 302 60.2
B 0 229 50315 830.48 309 302 60.2
C 3 233 2587095 39846.84 273 275 64.9
C 14 238 43972 673.1 273 275 64.9
C 0 10 12239 184.29 273 275 64.9
D 12 233 1012554 13940.22 303 295 72.6
D 8 195 410498 5649.07 303 295 72.6
D 2 234 12202 163.98 303 295 72.6

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