ASTROSAT CZTI

Data Quality Report

Orbit 22047

Creation date: 2024-06-27T18:35:48.272142
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_047T08_9000003262_22047cztM0_level2.evt modeM0/AS1A07_047T08_9000003262_22047cztM0_level2_quad_clean.evt
Size (bytes)291,816,00072,034,560
Size278.3 MB 68.7 MB
Events in quadrant A1,787,283497,493
Events in quadrant B1,833,658504,659
Events in quadrant C1,789,574480,740
Events in quadrant D3,181,576444,014

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075601
B076032
C075401
D0118431

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3593711.976065%
B3592882.449889%
C3592742.060134%
D359245612.694878%

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 4593 3593 2 2 0.04% 0.06%
B 4592 3592 0 0 0.00% 0.00%
C 4592 3592 0 0 0.00% 0.00%
D 4592 3592 418 418 9.10% 11.64%

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 5 16 24541 261.2 454 446 92.2
A 15 236 9239 95.32 454 446 92.2
A 13 254 5547 55.3 454 446 92.2
B 0 230 24041 275.78 453 441 85.6
B 12 111 9977 111.43 453 441 85.6
B 0 229 9692 108.1 453 441 85.6
C 14 238 69206 678.04 437 440 101.4
C 10 22 8733 81.77 437 440 101.4
C 0 10 4219 37.26 437 440 101.4
D 12 233 704222 6895.3 424 411 102.1
D 11 176 318474 3116.09 424 411 102.1
D 5 222 285170 2789.81 424 411 102.1

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