ASTROSAT CZTI

Data Quality Report

Orbit 12547

Creation date: 2024-06-27T16:29:01.386426
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/AS1G06_067T01_9000001860_12547cztM0_level2.evt modeM0/AS1G06_067T01_9000001860_12547cztM0_level2_quad_clean.evt
Size (bytes)100,488,96028,296,000
Size95.8 MB 27.0 MB
Events in quadrant A723,394191,697
Events in quadrant B742,115199,408
Events in quadrant C666,205195,972
Events in quadrant D827,349178,978

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030082
B030031
C027211
D032861

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A119710.083542%
B1197161.336675%
C119730.250627%
D1197131.086048%

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 1198 1198 0 0 0.00% 0.00%
B 1198 1198 8 8 0.67% 0.67%
C 1198 1198 0 0 0.00% 0.00%
D 1198 1198 7 7 0.58% 0.58%

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 1 162 25405 719.84 166 163 35.1
A 8 15 18339 518.33 166 163 35.1
A 1 178 13869 390.86 166 163 35.1
B 4 239 56097 1707.84 169 166 32.7
B 0 190 8857 265.38 169 166 32.7
B 0 230 5760 170.81 169 166 32.7
C 3 233 1258 26.9 170 171 40.4
C 9 221 1241 26.48 170 171 40.4
C 13 61 1172 24.77 170 171 40.4
D 1 52 152334 3732.02 165 161 40.8
D 8 195 30214 737.05 165 161 40.8
D 13 104 12284 297.31 165 161 40.8

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