ASTROSAT CZTI

Data Quality Report

Orbit 14480

Creation date: 2024-06-27T16:55:46.504022
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/AS1G08_083T01_9000002134_14480cztM0_level2.evt modeM0/AS1G08_083T01_9000002134_14480cztM0_level2_quad_clean.evt
Size (bytes)512,170,56097,686,720
Size488.4 MB 93.2 MB
Events in quadrant A3,355,126628,365
Events in quadrant B3,566,974625,566
Events in quadrant C3,524,074617,335
Events in quadrant D4,578,870588,924

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146592
B0151711
C0148031
D0185341

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71491361.902364%
B71491281.790460%
C71491181.650581%
D71494065.679116%

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 7415 7151 0 0 0.00% 0.00%
B 7415 7151 2 2 0.03% 0.03%
C 7415 7151 9 9 0.12% 0.13%
D 7415 7151 204 204 2.75% 2.85%

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 12 189 96300 558.09 842 822 171.1
A 0 226 7525 39.18 842 822 171.1
A 12 194 6383 32.51 842 822 171.1
B 0 189 123977 765.77 838 817 160.8
B 3 209 64977 398.93 838 817 160.8
B 15 222 19165 114.08 838 817 160.8
C 3 233 250265 1325.03 816 820 188.3
C 0 207 80051 420.87 816 820 188.3
C 14 234 10083 49.2 816 820 188.3
D 2 120 951548 4930.38 798 777 192.8
D 10 199 281516 1455.82 798 777 192.8
D 12 110 221634 1145.29 798 777 192.8

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