ASTROSAT CZTI

Data Quality Report

Orbit 11733

Creation date: 2024-06-27T16:17:34.017495
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/AS1G08_006T03_9000001732_11733cztM0_level2.evt modeM0/AS1G08_006T03_9000001732_11733cztM0_level2_quad_clean.evt
Size (bytes)799,358,400169,009,920
Size762.3 MB 161.2 MB
Events in quadrant A5,870,6521,107,040
Events in quadrant B6,976,4991,110,052
Events in quadrant C4,649,7331,105,301
Events in quadrant D5,984,7941,052,825

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0247313
B0279982
C0216132
D0252852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02200
B02200
C02200
D02200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A107351341.248253%
B107354814.480671%
C10735240.223568%
D107351901.769912%

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 12516 10738 35 35 0.28% 0.33%
B 12516 10737 245 245 1.96% 2.28%
C 12516 10738 0 0 0.00% 0.00%
D 12516 10738 159 159 1.27% 1.48%

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 8 15 417427 1682.54 1217 1189 247.4
A 9 143 216916 872.02 1217 1189 247.4
A 1 162 154812 620.98 1217 1189 247.4
B 4 239 1165188 5105.58 1218 1189 228.0
B 3 64 545421 2387.13 1218 1189 228.0
B 15 204 232816 1015.97 1218 1189 228.0
C 13 61 8916 28.09 1190 1196 274.9
C 12 4 5100 14.2 1190 1196 274.9
C 8 222 4213 10.98 1190 1196 274.9
D 1 52 394199 1400.93 1172 1139 280.6
D 8 195 380741 1352.97 1172 1139 280.6
D 10 253 214411 760.14 1172 1139 280.6

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