ASTROSAT CZTI

Data Quality Report

Orbit 17030

Creation date: 2024-06-27T17:31:04.786681
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_038T01_9000002530_17030cztM0_level2.evt modeM0/AS1T03_038T01_9000002530_17030cztM0_level2_quad_clean.evt
Size (bytes)1,278,103,680264,672,000
Size1.2 GB 252.4 MB
Events in quadrant A8,484,4421,721,866
Events in quadrant B9,315,4241,739,738
Events in quadrant C8,694,7491,675,629
Events in quadrant D10,979,0861,621,756

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0376592
B0396012
C0374902
D0457532

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03720
B03720
C03720
D03720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A182491140.624692%
B182502611.430137%
C182502091.145205%
D182507043.857534%

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 20095 18254 14 14 0.07% 0.08%
B 20096 18255 95 95 0.47% 0.52%
C 20096 18255 0 0 0.00% 0.00%
D 20096 18255 428 428 2.13% 2.34%

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 233700 545.01 2113 2061 425.0
A 12 189 62761 142.82 2113 2061 425.0
A 4 2 61460 139.76 2113 2061 425.0
B 3 64 492768 1229.76 2110 2056 399.0
B 0 229 149285 368.97 2110 2056 399.0
B 4 216 83047 202.97 2110 2056 399.0
C 3 233 414641 870.73 2035 2047 473.8
C 14 238 314049 658.45 2035 2047 473.8
C 7 247 14823 26.96 2035 2047 473.8
D 1 52 2728087 5501.21 2041 1978 495.5
D 5 222 296703 594.75 2041 1978 495.5
D 10 70 136712 271.89 2041 1978 495.5

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