ASTROSAT CZTI

Data Quality Report

Orbit 22582

Creation date: 2024-06-27T18:43:06.586451
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/AS1A07_054T01_9000003348_22582cztM0_level2.evt modeM0/AS1A07_054T01_9000003348_22582cztM0_level2_quad_clean.evt
Size (bytes)165,850,56045,221,760
Size158.2 MB 43.1 MB
Events in quadrant A1,039,215312,698
Events in quadrant B1,367,237310,382
Events in quadrant C1,109,413306,080
Events in quadrant D1,367,386293,401

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043061
B053991
C045091
D053711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A202060.297030%
B20201095.396040%
C2020321.584158%
D2020934.603960%

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 2020 2020 0 0 0.00% 0.00%
B 2020 2020 18 18 0.89% 0.89%
C 2020 2020 0 0 0.00% 0.00%
D 2020 2020 59 59 2.92% 2.92%

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 3792 64.5 269 263 54.7
A 0 226 2386 38.8 269 263 54.7
A 3 137 1996 31.67 269 263 54.7
B 15 33 291321 5701.88 265 259 51.0
B 15 35 18412 355.62 265 259 51.0
B 0 190 8755 166.44 265 259 51.0
C 14 238 42861 672.11 267 268 63.4
C 0 207 11470 176.76 267 268 63.4
C 10 222 4970 74.2 267 268 63.4
D 1 52 305792 4622.5 266 258 66.1
D 1 239 19005 283.63 266 258 66.1
D 2 153 15457 229.95 266 258 66.1

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