ASTROSAT CZTI

Data Quality Report

Orbit 37813

Creation date: 2024-06-27T21:44:47.580426
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_103T06_9000005348_37813cztM0_level2.evt modeM0/AS1A10_103T06_9000005348_37813cztM0_level2_quad_clean.evt
Size (bytes)198,650,88035,173,440
Size189.4 MB 33.5 MB
Events in quadrant A1,129,230244,625
Events in quadrant B1,766,635231,494
Events in quadrant C932,655248,513
Events in quadrant D2,057,974202,861

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A045701
B064801
C039191
D072941

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1876261.385928%
B187628415.138593%
C187670.373134%
D187643122.974414%

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 1876 1876 20 20 1.07% 1.07%
B 1876 1876 273 273 14.55% 14.55%
C 1876 1876 4 4 0.21% 0.21%
D 1876 1876 447 447 23.83% 23.83%

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 10 83 147847 3221.5 218 213 45.8
A 9 143 105702 2301.86 218 213 45.8
A 15 222 8695 185.08 218 213 45.8
B 5 172 859617 21006.3 202 197 40.9
B 10 246 50585 1231.6 202 197 40.9
B 0 229 15913 384.14 202 197 40.9
C 15 214 87476 1759.63 206 208 49.6
C 0 10 35965 720.99 206 208 49.6
C 0 207 2067 37.48 206 208 49.6
D 13 249 1219349 26006.52 186 182 46.9
D 10 199 30165 639.58 186 182 46.9
D 2 249 19914 420.91 186 182 46.9

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