ASTROSAT CZTI

Data Quality Report

Orbit 06378

Creation date: 2024-06-27T15:06:21.763577
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/AS1A02_124T01_9000000842_06378cztM0_level2.evt modeM0/AS1A02_124T01_9000000842_06378cztM0_level2_quad_clean.evt
Size (bytes)156,225,60041,016,960
Size149.0 MB 39.1 MB
Events in quadrant A1,092,496271,048
Events in quadrant B1,299,643272,970
Events in quadrant C1,062,697265,775
Events in quadrant D1,109,062257,576

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050251
B054931
C049541
D051361

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2426130.535862%
B2426562.308326%
C242650.206101%
D2426120.494641%

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 3296 2427 1 1 0.03% 0.04%
B 3296 2427 2 2 0.06% 0.08%
C 3296 2427 0 0 0.00% 0.00%
D 3296 2427 9 9 0.27% 0.37%

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 15 236 33325 580.01 272 266 57.0
A 8 15 9945 169.81 272 266 57.0
A 12 194 2522 39.58 272 266 57.0
B 0 228 171580 3144.0 277 270 54.5
B 0 219 30357 552.18 277 270 54.5
B 4 81 16779 302.98 277 270 54.5
C 1 241 8146 123.07 268 268 64.0
C 4 254 5369 79.69 268 268 64.0
C 13 61 2053 27.89 268 268 64.0
D 2 152 94077 1447.13 263 256 64.8
D 11 241 12464 188.3 263 256 64.8
D 5 97 8810 131.94 263 256 64.8

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