ASTROSAT CZTI

Data Quality Report

Orbit 21366

Creation date: 2024-06-27T18:26:55.646132
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/AS1A06_009T02_9000003152_21366cztM0_level2.evt modeM0/AS1A06_009T02_9000003152_21366cztM0_level2_quad_clean.evt
Size (bytes)190,912,32045,201,600
Size182.1 MB 43.1 MB
Events in quadrant A1,099,814312,817
Events in quadrant B1,113,211312,905
Events in quadrant C1,520,688294,950
Events in quadrant D1,900,143292,343

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A045330
B046550
C059840
D072060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A214510.046620%
B214660.279590%
C2146190.885368%
D2146421.957130%

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 2145 2145 0 0 0.00% 0.00%
B 2146 2146 5 5 0.23% 0.23%
C 2146 2146 10 10 0.47% 0.47%
D 2146 2146 49 49 2.28% 2.28%

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 5 168 51279 926.36 269 265 55.1
A 15 174 8051 141.39 269 265 55.1
A 13 254 3902 66.04 269 265 55.1
B 0 190 47446 918.41 263 257 51.4
B 0 229 10071 191.0 263 257 51.4
B 3 64 9232 174.68 263 257 51.4
C 3 233 513537 8884.41 246 248 57.8
C 14 238 40124 690.21 246 248 57.8
C 10 23 3994 64.84 246 248 57.8
D 12 235 703550 11201.26 254 246 62.8
D 1 52 92122 1463.28 254 246 62.8
D 7 38 82101 1303.67 254 246 62.8

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