ASTROSAT CZTI

Data Quality Report

Orbit 24607

Creation date: 2024-06-27T19:07:50.636411
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_189T01_9000003614_24607cztM0_level2.evt modeM0/AS1T03_189T01_9000003614_24607cztM0_level2_quad_clean.evt
Size (bytes)591,431,040111,130,560
Size564.0 MB 106.0 MB
Events in quadrant A3,614,537751,522
Events in quadrant B3,728,720758,647
Events in quadrant C5,954,657701,196
Events in quadrant D4,182,554709,931

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149152
B0153222
C0222762
D0165022

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63681342.104271%
B63681782.795226%
C63685799.092337%
D63681652.591080%

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 7673 6368 0 0 0.00% 0.00%
B 7673 6368 13 13 0.17% 0.20%
C 7673 6368 134 134 1.75% 2.10%
D 7673 6368 2 2 0.03% 0.03%

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 0 226 8211 39.72 936 922 183.5
A 13 254 7695 36.91 936 922 183.5
A 12 96 7619 36.49 936 922 183.5
B 3 64 138243 814.71 913 891 168.6
B 12 111 19729 111.74 913 891 168.6
B 11 111 18042 101.73 913 891 168.6
C 7 247 2319640 11551.02 885 895 200.7
C 14 238 142493 705.38 885 895 200.7
C 3 233 24500 117.59 885 895 200.7
D 13 104 417028 1923.04 912 891 216.4
D 8 195 263459 1213.37 912 891 216.4
D 13 172 33988 152.95 912 891 216.4

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