ASTROSAT CZTI

Data Quality Report

Orbit 44821

Creation date: 2024-06-27T23:07:34.033894
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/AS1A13_024T02_9000006026_44821cztM0_level2.fits modeM0/AS1A13_024T02_9000006026_44821cztM0_level2_quad_clean.evt
Size (bytes)267,788,16040,415,040
Size255.4 MB 38.5 MB
Events in quadrant A3,787,319219,479
Events in quadrant B1,413,172304,022
Events in quadrant C1,139,851287,190
Events in quadrant D3,389,622244,986

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128980
B058190
C049410
D0117220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A233670130.008562%
B2337461.968335%
C233780.342319%
D233731213.350449%

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 2336 2336 648 648 27.74% 27.74%
B 2337 2337 28 28 1.20% 1.20%
C 2337 2337 9 9 0.39% 0.39%
D 2337 2337 359 359 15.36% 15.36%

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 15 223 2031884 38921.45 247 242 52.2
A 10 83 762086 14595.13 247 242 52.2
A 13 248 20197 382.29 247 242 52.2
B 15 36 85741 1566.49 276 268 54.6
B 5 255 56371 1028.22 276 268 54.6
B 4 171 52572 958.59 276 268 54.6
C 12 2 21561 328.17 277 279 64.9
C 1 3 17037 258.41 277 279 64.9
C 12 250 8854 132.23 277 279 64.9
D 13 187 1227335 18238.44 268 260 67.3
D 13 174 322547 4790.26 268 260 67.3
D 2 249 282913 4201.17 268 260 67.3

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