ASTROSAT CZTI

Data Quality Report

Orbit 04544

Creation date: 2024-06-27T14:43:36.453987
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/AS1G05_233T10_9000000570_04544cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04544cztM0_level2_quad_clean.evt
Size (bytes)174,291,84011,436,480
Size166.2 MB 10.9 MB
Events in quadrant A1,596,24047,204
Events in quadrant B1,180,49648,207
Events in quadrant C1,290,33047,051
Events in quadrant D1,062,44646,713

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061892
B048321
C052611
D046341

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A21621245.735430%
B2162622.867715%
C2162673.098982%
D2162100.462535%

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 3477 2163 66 66 1.90% 3.05%
B 3477 2163 4 4 0.12% 0.18%
C 3477 2163 43 43 1.24% 1.99%
D 3477 2163 2 2 0.06% 0.09%

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 0 13 525247 9069.81 274 267 57.9
A 13 14 5915 97.58 274 267 57.9
A 0 226 2948 46.32 274 267 57.9
B 4 80 45100 812.37 283 276 55.2
B 8 3 9429 165.88 283 276 55.2
B 12 18 6400 110.99 283 276 55.2
C 14 48 222448 3469.89 270 270 64.0
C 1 16 6247 93.35 270 270 64.0
C 9 247 5461 81.07 270 270 64.0
D 2 136 25747 356.08 265 258 71.6
D 13 235 13527 185.37 265 258 71.6
D 2 14 6673 89.61 265 258 71.6

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