ASTROSAT CZTI

Data Quality Report

Orbit 39112

Creation date: 2024-06-27T22:00:33.889292
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/AS1T05_067T01_9000005432_39112cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39112cztM0_level2_quad_clean.evt
Size (bytes)392,880,960101,180,160
Size374.7 MB 96.5 MB
Events in quadrant A3,588,358697,947
Events in quadrant B2,637,087725,548
Events in quadrant C3,277,842675,814
Events in quadrant D4,620,228586,691

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144582
B0111031
C0132931
D0174601

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5400420.777778%
B540070.129630%
C5400440.814815%
D54004187.740741%

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 9196 5402 18 18 0.20% 0.33%
B 9196 5402 2 2 0.02% 0.04%
C 9196 5402 31 31 0.34% 0.57%
D 9196 5402 380 380 4.13% 7.03%

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 10 83 415687 3122.44 661 649 132.9
A 15 223 369428 2774.42 661 649 132.9
A 12 16 128711 963.44 661 649 132.9
B 0 199 20842 161.13 657 642 125.4
B 5 172 19101 147.25 657 642 125.4
B 12 111 15282 116.78 657 642 125.4
C 15 208 441434 3020.22 634 641 145.9
C 15 214 229648 1569.11 634 641 145.9
C 9 187 125251 853.8 634 641 145.9
D 2 153 1152632 7646.77 619 603 150.7
D 12 235 746216 4949.12 619 603 150.7
D 5 222 145176 959.62 619 603 150.7

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