ASTROSAT CZTI

Data Quality Report

Orbit 11163

Creation date: 2024-06-27T16:09:12.775217
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/AS1A04_042T01_9000001630_11163cztM0_level2.evt modeM0/AS1A04_042T01_9000001630_11163cztM0_level2_quad_clean.evt
Size (bytes)216,146,88017,847,360
Size206.1 MB 17.0 MB
Events in quadrant A1,652,77791,294
Events in quadrant B1,796,43992,926
Events in quadrant C1,218,87493,709
Events in quadrant D1,711,07687,226

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064612
B069151
C051551
D066781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A24211927.930607%
B242130012.391574%
C2421602.478315%
D24211466.030566%

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 2781 2422 30 30 1.08% 1.24%
B 2781 2423 78 78 2.80% 3.22%
C 2781 2423 1 1 0.04% 0.04%
D 2781 2422 45 45 1.62% 1.86%

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 14 238 202303 3027.36 314 306 66.7
A 8 15 125335 1873.83 314 306 66.7
A 8 5 101823 1521.45 314 306 66.7
B 4 239 488838 7711.74 310 302 63.3
B 10 16 42373 664.11 310 302 63.3
B 11 51 10444 160.1 310 302 63.3
C 8 128 4642 58.44 309 309 74.1
C 14 234 2858 34.38 309 309 74.1
C 13 61 2294 26.77 309 309 74.1
D 12 16 365440 4764.09 306 296 76.6
D 10 157 115437 1502.26 306 296 76.6
D 1 52 24561 316.59 306 296 76.6

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