ASTROSAT CZTI

Data Quality Report

Orbit 12363

Creation date: 2024-06-27T16:26:07.961044
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_130T04_9000001832_12363cztM0_level2.evt modeM0/AS1A04_130T04_9000001832_12363cztM0_level2_quad_clean.evt
Size (bytes)548,161,92083,502,720
Size522.8 MB 79.6 MB
Events in quadrant A3,996,831523,018
Events in quadrant B3,812,151529,185
Events in quadrant C3,121,202524,226
Events in quadrant D5,217,399485,628

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162603
B0155142
C0138172
D0199242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66881552.317584%
B66882043.050239%
C6688771.151316%
D66885618.388158%

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 7604 6690 3 3 0.04% 0.04%
B 7604 6690 59 59 0.78% 0.88%
C 7604 6690 4 4 0.05% 0.06%
D 7604 6690 462 462 6.08% 6.91%

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 13 251 280399 1709.33 813 796 163.6
A 1 162 206594 1258.13 813 796 163.6
A 1 178 117775 715.14 813 796 163.6
B 4 239 299859 1952.97 808 790 153.1
B 10 245 212377 1381.7 808 790 153.1
B 3 64 47314 303.81 808 790 153.1
C 15 208 44513 242.63 784 787 180.2
C 14 234 13114 68.4 784 787 180.2
C 13 61 5712 27.33 784 787 180.2
D 1 52 1788570 9790.45 759 736 182.6
D 13 104 182951 997.83 759 736 182.6
D 9 85 106419 578.73 759 736 182.6

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