ASTROSAT CZTI

Data Quality Report

Orbit 14667

Creation date: 2024-06-27T16:58:13.921660
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/AS1G08_020T01_9000002168_14667cztM0_level2.evt modeM0/AS1G08_020T01_9000002168_14667cztM0_level2_quad_clean.evt
Size (bytes)190,252,80054,158,400
Size181.4 MB 51.6 MB
Events in quadrant A1,366,402362,774
Events in quadrant B1,373,259361,347
Events in quadrant C1,525,630354,962
Events in quadrant D1,298,358355,167

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061631
B062301
C063751
D061361

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2886421.455301%
B2886682.356202%
C2886481.663202%
D2886220.762301%

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 3272 2887 0 0 0.00% 0.00%
B 3272 2887 1 1 0.03% 0.03%
C 3272 2888 0 0 0.00% 0.00%
D 3272 2888 0 0 0.00% 0.00%

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 34625 481.11 341 334 71.3
A 1 162 11068 150.6 341 334 71.3
A 1 178 3074 38.44 341 334 71.3
B 4 173 15953 227.36 342 333 68.7
B 12 111 8161 113.94 342 333 68.7
B 11 111 6832 94.6 342 333 68.7
C 3 233 213991 2654.04 335 337 80.5
C 0 207 5072 58.81 335 337 80.5
C 13 61 2371 25.26 335 337 80.5
D 5 222 20855 240.92 333 323 85.2
D 2 234 10346 117.61 333 323 85.2
D 15 145 7793 87.65 333 323 85.2

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