ASTROSAT CZTI

Data Quality Report

Orbit 30968

Creation date: 2024-06-27T20:21:44.621522
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/AS1A10_058T11_9000004474_30968cztM0_level2.evt modeM0/AS1A10_058T11_9000004474_30968cztM0_level2_quad_clean.evt
Size (bytes)551,632,32085,029,120
Size526.1 MB 81.1 MB
Events in quadrant A3,314,457532,527
Events in quadrant B5,349,718530,733
Events in quadrant C3,776,813514,209
Events in quadrant D3,789,795508,751

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143451
B0213301
C0153131
D0154291

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70131271.810923%
B70141992.837183%
C70141712.437981%
D70141732.466496%

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 7298 7013 0 0 0.00% 0.00%
B 7299 7014 7 7 0.10% 0.10%
C 7299 7014 4 4 0.05% 0.06%
D 7298 7013 66 66 0.90% 0.94%

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 13 254 11363 60.54 859 840 173.8
A 3 137 9045 47.2 859 840 173.8
A 0 226 7284 37.07 859 840 173.8
B 6 159 1900272 11468.89 843 820 165.6
B 0 190 56213 334.46 843 820 165.6
B 4 80 33027 194.47 843 820 165.6
C 3 233 310684 1603.78 821 827 193.2
C 14 238 128616 661.42 821 827 193.2
C 0 10 105182 540.13 821 827 193.2
D 8 195 330561 1668.27 833 812 197.7
D 2 250 252104 1271.34 833 812 197.7
D 2 234 34600 170.94 833 812 197.7

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