ASTROSAT CZTI

Data Quality Report

Orbit 41011

Creation date: 2024-06-27T22:23:51.784063
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/AS1A12_042T01_9000005588_41011cztM0_level2.fits modeM0/AS1A12_042T01_9000005588_41011cztM0_level2_quad_clean.evt
Size (bytes)138,936,96039,810,240
Size132.5 MB 38.0 MB
Events in quadrant A1,252,667273,407
Events in quadrant B1,164,405277,176
Events in quadrant C1,247,121258,684
Events in quadrant D1,308,142239,757

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050491
B048391
C049801
D052961

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A216490.415896%
B2164100.462107%
C2164150.693161%
D2164331.524954%

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 2164 2164 2 2 0.09% 0.09%
B 2164 2164 5 5 0.23% 0.23%
C 2164 2164 11 11 0.51% 0.51%
D 2164 2164 30 30 1.39% 1.39%

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 10 83 256163 4915.0 251 246 52.1
A 12 189 23897 454.23 251 246 52.1
A 13 254 3333 59.29 251 246 52.1
B 0 186 113486 2389.34 245 238 47.4
B 5 255 54609 1147.13 245 238 47.4
B 15 85 31447 658.46 245 238 47.4
C 3 233 111603 1939.46 244 246 57.4
C 15 214 95760 1663.53 244 246 57.4
C 14 254 40604 702.9 244 246 57.4
D 2 153 118300 1921.78 247 240 61.4
D 13 171 86593 1405.65 247 240 61.4
D 12 233 61632 999.34 247 240 61.4

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