ASTROSAT CZTI

Data Quality Report

Orbit 10049

Creation date: 2024-06-27T15:54:14.604652
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/AS1A03_052T01_9000001436_10049cztM0_level2.evt modeM0/AS1A03_052T01_9000001436_10049cztM0_level2_quad_clean.evt
Size (bytes)939,980,160138,484,800
Size896.4 MB 132.1 MB
Events in quadrant A6,812,764860,007
Events in quadrant B6,584,599883,850
Events in quadrant C5,147,940864,836
Events in quadrant D9,142,706788,331

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026422
B026434
C026426
D026426

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320444081
B0308043582
C0265052933
D0386143783

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A114174283.748796%
B115212452.126552%
C11571460.397546%
D1146811399.931985%

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 13977 12082 237 237 1.70% 1.96%
B 13977 12160 80 80 0.57% 0.66%
C 13977 12196 0 0 0.00% 0.00%
D 13977 12125 1163 1163 8.32% 9.59%

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 15 239 1460995 5319.47 1340 1309 274.4
A 8 15 178131 644.38 1340 1309 274.4
A 15 174 13016 42.66 1340 1309 274.4
B 4 81 934072 3530.44 1360 1326 264.2
B 10 247 165545 621.57 1360 1326 264.2
B 4 239 106195 396.93 1360 1326 264.2
C 13 61 10170 28.93 1316 1323 305.8
C 14 67 9685 27.34 1316 1323 305.8
C 8 222 7305 19.56 1316 1323 305.8
D 1 20 3118165 9296.39 1247 1217 335.3
D 1 52 473372 1408.22 1247 1217 335.3
D 8 195 215139 638.03 1247 1217 335.3

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