ASTROSAT CZTI

Data Quality Report

Orbit 24086

Creation date: 2024-06-27T19:01:59.264055
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/AS1T03_182T01_9000003560_24086cztM0_level2.evt modeM0/AS1T03_182T01_9000003560_24086cztM0_level2_quad_clean.evt
Size (bytes)438,848,64074,747,520
Size418.5 MB 71.3 MB
Events in quadrant A2,858,334488,368
Events in quadrant B2,951,197489,662
Events in quadrant C2,812,885464,147
Events in quadrant D4,312,733454,252

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113231
B0117491
C0112591
D0166771

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5243531.010872%
B5244661.258581%
C5244821.563692%
D52441202.288330%

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 6548 5244 0 0 0.00% 0.00%
B 6549 5245 3 3 0.05% 0.06%
C 6549 5245 0 0 0.00% 0.00%
D 6549 5245 76 76 1.16% 1.45%

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 2 250 35062 236.1 731 718 145.5
A 13 254 8868 56.03 731 718 145.5
A 0 226 6470 39.54 731 718 145.5
B 0 197 82669 611.05 716 701 134.1
B 0 230 21274 153.37 716 701 134.1
B 15 32 16998 121.49 716 701 134.1
C 14 238 111162 690.01 689 696 160.1
C 7 247 10167 59.16 689 696 160.1
C 3 233 5098 27.5 689 696 160.1
D 8 195 923515 5302.69 710 690 174.0
D 1 52 466479 2676.49 710 690 174.0
D 12 218 155371 888.82 710 690 174.0

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