ASTROSAT CZTI

Data Quality Report

Orbit 30932

Creation date: 2024-06-27T20:21:19.946965
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_058T10_9000004472_30932cztM0_level2.evt modeM0/AS1A10_058T10_9000004472_30932cztM0_level2_quad_clean.evt
Size (bytes)136,460,16033,030,720
Size130.1 MB 31.5 MB
Events in quadrant A796,755228,151
Events in quadrant B1,315,818231,482
Events in quadrant C919,893224,370
Events in quadrant D1,006,561215,400

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032481
B048011
C037631
D039811

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A134750.371195%
B1347423.118040%
C1347533.934670%
D1346261.931649%

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 1347 1347 0 0 0.00% 0.00%
B 1347 1347 5 5 0.37% 0.37%
C 1347 1347 1 1 0.07% 0.07%
D 1346 1346 14 14 1.04% 1.04%

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 3267 72.58 206 203 42.2
A 0 226 1810 38.07 206 203 42.2
A 3 137 1748 36.6 206 203 42.2
B 6 159 409623 10163.3 209 205 40.3
B 0 199 26531 653.51 209 205 40.3
B 5 255 25950 639.09 209 205 40.3
C 3 233 59401 1209.25 204 206 49.0
C 14 238 36327 737.89 204 206 49.0
C 4 175 8427 167.94 204 206 49.0
D 8 195 119542 2390.32 203 198 49.9
D 13 249 63455 1266.96 203 198 49.9
D 12 233 23246 461.62 203 198 49.9

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