ASTROSAT CZTI

Data Quality Report

Orbit 16654

Creation date: 2024-06-27T17:25:34.239120
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/AS1A05_002T10_9000002460_16654cztM0_level2.evt modeM0/AS1A05_002T10_9000002460_16654cztM0_level2_quad_clean.evt
Size (bytes)173,278,08032,212,800
Size165.3 MB 30.7 MB
Events in quadrant A858,601214,933
Events in quadrant B889,815220,947
Events in quadrant C865,625209,581
Events in quadrant D2,498,596187,220

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A039941
B040170
C039180
D087680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A195730.153296%
B195740.204394%
C195750.255493%
D195739019.928462%

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 1958 1958 2 2 0.10% 0.10%
B 1958 1958 0 0 0.00% 0.00%
C 1958 1958 0 0 0.00% 0.00%
D 1958 1958 411 411 20.99% 20.99%

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 12 96 23450 526.63 213 208 44.1
A 3 1 12982 289.44 213 208 44.1
A 9 143 4172 89.82 213 208 44.1
B 15 35 36358 826.13 215 209 43.8
B 0 214 11326 254.06 215 209 43.8
B 12 111 4851 106.09 215 209 43.8
C 14 238 32242 625.91 211 212 51.2
C 7 247 4439 82.6 211 212 51.2
C 3 233 3066 55.77 211 212 51.2
D 2 16 1381416 27383.73 201 195 50.4
D 1 52 212983 4218.68 201 195 50.4
D 10 70 68138 1347.02 201 195 50.4

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