ASTROSAT CZTI

Data Quality Report

Orbit 22078

Creation date: 2024-06-27T18:33:44.442689
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/AS1A07_010T06_9000003238_22078cztM0_level2.evt modeM0/AS1A07_010T06_9000003238_22078cztM0_level2_quad_clean.evt
Size (bytes)186,621,12039,672,000
Size178.0 MB 37.8 MB
Events in quadrant A1,305,046254,055
Events in quadrant B1,494,879260,002
Events in quadrant C1,302,062253,192
Events in quadrant D1,372,551248,819

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054851
B060821
C054951
D057821

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2575501.941748%
B2575863.339806%
C2575622.407767%
D2575240.932039%

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 2855 2575 2 2 0.07% 0.08%
B 2855 2575 9 9 0.32% 0.35%
C 2855 2576 1 1 0.04% 0.04%
D 2855 2576 8 8 0.28% 0.31%

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 15 174 5715 78.03 335 328 69.0
A 13 254 4449 59.69 335 328 69.0
A 4 2 3023 39.04 335 328 69.0
B 0 228 104934 1622.31 332 323 64.5
B 0 190 56732 874.79 332 323 64.5
B 3 64 15178 230.37 332 323 64.5
C 14 238 49780 663.72 315 316 74.5
C 9 54 13901 182.29 315 316 74.5
C 8 128 3124 37.68 315 316 74.5
D 1 52 70656 880.26 324 313 79.9
D 13 172 31315 387.95 324 313 79.9
D 2 234 11545 140.56 324 313 79.9

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