ASTROSAT CZTI

Data Quality Report

Orbit 29311

Creation date: 2024-06-27T20:02:52.435341
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_083T01_9000004214_29311cztM0_level2.evt modeM0/AS1A10_083T01_9000004214_29311cztM0_level2_quad_clean.evt
Size (bytes)236,779,20043,012,800
Size225.8 MB 41.0 MB
Events in quadrant A1,038,702315,325
Events in quadrant B1,425,384312,590
Events in quadrant C2,704,903272,710
Events in quadrant D1,881,417272,855

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043141
B055271
C092611
D068911

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A175970.397953%
B1759472.671973%
C175943024.445708%
D175924313.814667%

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 1759 1759 0 0 0.00% 0.00%
B 1759 1759 15 15 0.85% 0.85%
C 1759 1759 197 197 11.20% 11.20%
D 1759 1759 127 127 7.22% 7.22%

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 15 174 18329 343.89 264 260 52.5
A 13 254 3269 57.27 264 260 52.5
A 0 226 2221 37.32 264 260 52.5
B 5 255 383427 7923.49 253 247 48.4
B 0 190 36273 744.95 253 247 48.4
B 10 245 17546 357.71 253 247 48.4
C 3 233 1724813 31040.91 239 241 55.6
C 14 238 39411 705.03 239 241 55.6
C 2 114 3960 66.94 239 241 55.6
D 1 52 773666 13388.08 243 238 57.8
D 8 195 102943 1777.83 243 238 57.8
D 7 80 26684 457.78 243 238 57.8

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