ASTROSAT CZTI

Data Quality Report

Orbit 28514

Creation date: 2024-06-27T19:52:43.252070
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_058T09_9000004100_28514cztM0_level2.evt modeM0/AS1A10_058T09_9000004100_28514cztM0_level2_quad_clean.evt
Size (bytes)198,224,64041,103,360
Size189.0 MB 39.2 MB
Events in quadrant A1,257,491285,758
Events in quadrant B1,600,334281,122
Events in quadrant C1,202,048268,589
Events in quadrant D1,799,463257,308

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051231
B062114
C048971
D069221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2084492.351248%
B20831667.969275%
C2083633.024484%
D20831205.760922%

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 3339 2084 0 0 0.00% 0.00%
B 3338 2083 102 102 3.06% 4.90%
C 3338 2083 0 0 0.00% 0.00%
D 3338 2083 92 92 2.76% 4.42%

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 0 247 27411 421.99 314 309 64.2
A 15 174 13024 197.98 314 309 64.2
A 0 226 4639 67.42 314 309 64.2
B 10 245 305424 5270.9 302 295 57.9
B 0 230 94464 1626.71 302 295 57.9
B 0 182 7261 120.33 302 295 57.9
C 14 238 47952 692.28 291 293 68.8
C 3 233 7061 98.31 291 293 68.8
C 7 247 5113 70.01 291 293 68.8
D 8 195 389352 5364.61 298 290 72.5
D 1 52 143856 1979.57 298 290 72.5
D 12 233 102125 1404.16 298 290 72.5

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