ASTROSAT CZTI

Data Quality Report

Orbit 07050

Creation date: 2024-06-27T15:14:57.398964
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/AS1G06_029T01_9000000964_07050cztM0_level2.evt modeM0/AS1G06_029T01_9000000964_07050cztM0_level2_quad_clean.evt
Size (bytes)824,832,000157,357,440
Size786.6 MB 150.1 MB
Events in quadrant A5,953,4531,005,181
Events in quadrant B6,399,6081,022,224
Events in quadrant C5,718,123999,710
Events in quadrant D6,132,647945,042

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242723
B0257462
C0240682
D0249372

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02340
B02340
C02340
D02340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A114672111.840063%
B114673102.703410%
C114671511.316822%
D114671701.482515%

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 13897 11469 6 6 0.04% 0.05%
B 13897 11469 41 41 0.30% 0.36%
C 13897 11469 5 5 0.04% 0.04%
D 13897 11469 37 37 0.27% 0.32%

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 13 251 195246 646.26 1489 1461 299.9
A 15 234 21648 67.32 1489 1461 299.9
A 0 226 14052 41.99 1489 1461 299.9
B 3 220 234171 823.37 1498 1470 282.6
B 4 81 191844 673.6 1498 1470 282.6
B 0 214 135820 475.37 1498 1470 282.6
C 9 68 112578 336.35 1433 1451 330.4
C 13 61 10947 28.74 1433 1451 330.4
C 1 16 7857 19.39 1433 1451 330.4
D 8 195 483192 1375.46 1431 1392 350.3
D 14 34 81781 229.5 1431 1392 350.3
D 2 33 74878 209.79 1431 1392 350.3

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