ASTROSAT CZTI

Data Quality Report

Orbit 11773

Creation date: 2024-06-27T16:18:07.008843
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/AS1A04_231T01_9000001740_11773cztM0_level2.evt modeM0/AS1A04_231T01_9000001740_11773cztM0_level2_quad_clean.evt
Size (bytes)445,455,36040,294,080
Size424.8 MB 38.4 MB
Events in quadrant A2,327,184248,871
Events in quadrant B6,073,803226,947
Events in quadrant C1,546,357253,206
Events in quadrant D3,292,964229,040

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094610
B0205820
C074180
D0123170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3692350.947996%
B369294725.650054%
C369200.000000%
D369249713.461538%

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 3693 3693 13 13 0.35% 0.35%
B 3693 3693 709 709 19.20% 19.20%
C 3693 3693 1 1 0.03% 0.03%
D 3693 3693 417 417 11.29% 11.29%

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 437367 5189.24 401 392 84.2
A 1 162 87907 1039.27 401 392 84.2
A 5 16 79481 939.21 401 392 84.2
B 10 16 3579926 48354.56 381 372 74.0
B 4 239 401656 5420.76 381 372 74.0
B 15 204 198505 2676.49 381 372 74.0
C 14 236 8428 87.15 390 391 92.2
C 0 207 4683 46.54 390 391 92.2
C 8 128 3910 38.16 390 391 92.2
D 1 52 1189049 12976.42 370 357 91.6
D 13 122 189146 2060.93 370 357 91.6
D 13 104 121685 1324.48 370 357 91.6

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