ASTROSAT CZTI

Data Quality Report

Orbit 13297

Creation date: 2024-06-27T16:38:56.115690
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/AS1T02_013T01_9000001976_13297cztM0_level2.evt modeM0/AS1T02_013T01_9000001976_13297cztM0_level2_quad_clean.evt
Size (bytes)199,437,12040,930,560
Size190.2 MB 39.0 MB
Events in quadrant A1,236,286292,541
Events in quadrant B2,078,268224,500
Events in quadrant C1,173,577290,391
Events in quadrant D1,404,130276,372

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050100
B075891
C048720
D055390

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A215340.185787%
B212860628.477444%
C2153291.346958%
D2153271.254064%

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 2154 2154 0 0 0.00% 0.00%
B 2154 2129 323 323 15.00% 15.17%
C 2154 2154 32 32 1.49% 1.49%
D 2154 2154 22 22 1.02% 1.02%

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 8 15 230349 4109.21 260 255 56.0
A 9 143 2446 39.13 260 255 56.0
A 0 226 2372 37.81 260 255 56.0
B 4 239 1201520 30773.8 196 192 39.0
B 0 189 37878 965.38 196 192 39.0
B 4 216 25732 654.25 196 192 39.0
C 15 208 204861 3444.61 246 248 59.4
C 14 234 3726 58.55 246 248 59.4
C 0 207 2963 45.71 246 248 59.4
D 1 52 153298 2463.24 250 243 62.1
D 13 249 77784 1247.93 250 243 62.1
D 2 136 58554 938.45 250 243 62.1

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