ASTROSAT CZTI

Data Quality Report

Orbit 32968

Creation date: 2024-06-27T20:44:02.713339
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/AS1C07_003T01_9000004754_32968cztM0_level2.evt modeM0/AS1C07_003T01_9000004754_32968cztM0_level2_quad_clean.evt
Size (bytes)229,985,28035,884,800
Size219.3 MB 34.2 MB
Events in quadrant A1,241,648230,936
Events in quadrant B1,889,537221,616
Events in quadrant C1,341,365232,033
Events in quadrant D2,313,486214,299

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052992
B071251
C055891
D089081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A261350.191351%
B26132479.452736%
C2613250.956755%
D26131033.941829%

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 4076 2614 2 2 0.05% 0.08%
B 4076 2614 204 204 5.00% 7.80%
C 4076 2614 14 14 0.34% 0.54%
D 4076 2614 81 81 1.99% 3.10%

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 9 143 9824 144.47 315 309 65.9
A 13 6 4877 69.36 315 309 65.9
A 13 254 4622 65.48 315 309 65.9
B 5 200 455015 7493.37 307 299 60.7
B 5 172 147925 2432.76 307 299 60.7
B 0 219 42785 700.14 307 299 60.7
C 0 10 80081 1093.0 310 311 73.0
C 1 241 21574 291.34 310 311 73.0
C 14 67 10536 140.1 310 311 73.0
D 8 195 631257 7826.18 303 295 80.6
D 7 80 143631 1777.88 303 295 80.6
D 13 153 130269 1612.14 303 295 80.6

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