ASTROSAT CZTI

Data Quality Report

Orbit 14810

Creation date: 2024-06-27T16:59:58.802045
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/AS1A04_130T03_9000002186_14810cztM0_level2.evt modeM0/AS1A04_130T03_9000002186_14810cztM0_level2_quad_clean.evt
Size (bytes)141,220,80017,493,120
Size134.7 MB 16.7 MB
Events in quadrant A992,68198,760
Events in quadrant B1,087,67197,718
Events in quadrant C1,121,44492,492
Events in quadrant D936,50594,553

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041260
B043840
C045420
D040910

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A200140.199900%
B2001291.449275%
C200110.049975%
D200130.149925%

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 2002 2002 0 0 0.00% 0.00%
B 2002 2002 13 13 0.65% 0.65%
C 2002 2002 1 1 0.05% 0.05%
D 2002 2002 2 2 0.10% 0.10%

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 12 189 24289 454.2 250 245 52.9
A 0 226 2356 39.88 250 245 52.9
A 14 237 2291 38.65 250 245 52.9
B 3 64 81458 1672.46 247 241 48.6
B 0 219 16409 332.94 247 241 48.6
B 15 35 6368 126.17 247 241 48.6
C 3 233 182262 3239.66 235 236 56.2
C 0 207 18469 324.51 235 236 56.2
C 13 61 1775 27.39 235 236 56.2
D 10 199 19951 328.56 238 231 60.0
D 2 234 7017 113.06 238 231 60.0
D 2 120 6099 97.77 238 231 60.0

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