ASTROSAT CZTI

Data Quality Report

Orbit 44730

Creation date: 2024-06-27T23:05:49.076858
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/AS1A13_004T11_9000006018_44730cztM0_level2.fits modeM0/AS1A13_004T11_9000006018_44730cztM0_level2_quad_clean.evt
Size (bytes)704,877,120138,600,000
Size672.2 MB 132.2 MB
Events in quadrant A9,488,882861,913
Events in quadrant B4,782,453957,912
Events in quadrant C3,863,656934,881
Events in quadrant D7,269,487824,880

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01820
B01820
C01820
D01820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0348192
B0201902
C0181522
D0277332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8882113512.778653%
B88822122.386850%
C8882620.698041%
D88835676.382979%

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 10502 8884 576 576 5.48% 6.48%
B 10502 8884 56 56 0.53% 0.63%
C 10502 8884 0 0 0.00% 0.00%
D 10503 8885 436 436 4.15% 4.91%

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 15 223 2863812 14525.08 953 931 197.1
A 10 83 2578300 13076.51 953 931 197.1
A 12 227 260887 1318.91 953 931 197.1
B 0 189 374319 1927.79 984 951 193.7
B 5 172 123849 634.55 984 951 193.7
B 0 219 88068 449.81 984 951 193.7
C 3 233 17391 71.6 978 985 229.1
C 0 207 14513 59.04 978 985 229.1
C 12 2 13639 55.23 978 985 229.1
D 1 52 1609728 6720.27 956 927 239.4
D 13 249 795710 3319.96 956 927 239.4
D 2 249 394576 1644.35 956 927 239.4

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