ASTROSAT CZTI

Data Quality Report

Orbit 30805

Creation date: 2024-06-27T20:19:49.885587
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_071T25_9000004450_30805cztM0_level2.evt modeM0/AS1A10_071T25_9000004450_30805cztM0_level2_quad_clean.evt
Size (bytes)606,628,80080,706,240
Size578.5 MB 77.0 MB
Events in quadrant A3,478,564513,855
Events in quadrant B5,339,732510,880
Events in quadrant C4,392,867479,282
Events in quadrant D4,711,472476,729

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140123
B0204363
C0176423
D0184343

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66401502.259036%
B66402493.750000%
C66402974.472892%
D66401652.484940%

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 7600 6640 0 0 0.00% 0.00%
B 7600 6640 3 3 0.04% 0.05%
C 7600 6640 14 14 0.18% 0.21%
D 7600 6641 44 44 0.58% 0.66%

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 11455 58.91 902 885 179.4
A 3 137 8886 44.59 902 885 179.4
A 0 226 7606 37.46 902 885 179.4
B 6 159 1769880 10480.38 882 863 168.8
B 4 80 32833 189.4 882 863 168.8
B 12 111 20529 116.51 882 863 168.8
C 3 233 839343 4275.15 838 843 196.1
C 14 238 138192 700.28 838 843 196.1
C 0 10 132654 672.05 838 843 196.1
D 8 195 1336460 6540.8 857 839 204.2
D 2 250 78903 382.3 857 839 204.2
D 15 217 45244 217.46 857 839 204.2

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