ASTROSAT CZTI

Data Quality Report

Orbit 33200

Creation date: 2024-06-27T20:46:00.681056
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/AS1A10_067T01_9000004770_33200cztM0_level2.evt modeM0/AS1A10_067T01_9000004770_33200cztM0_level2_quad_clean.evt
Size (bytes)1,432,477,440187,344,000
Size1.3 GB 178.7 MB
Events in quadrant A7,478,5621,183,367
Events in quadrant B11,515,8941,165,821
Events in quadrant C7,633,5341,159,886
Events in quadrant D15,682,6971,066,742

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0550
B0550
C0550
D0550

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330215
B0451634
C0335084
D0576594

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03260
B03260
C03260
D03260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A15913500.314209%
B1591312477.836360%
C159131110.697543%
D1591312067.578709%

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 21401 15917 19 19 0.09% 0.12%
B 21401 15917 749 749 3.50% 4.71%
C 21401 15917 83 83 0.39% 0.52%
D 21401 15917 961 961 4.49% 6.04%

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 14 254 177261 470.11 1865 1828 373.2
A 14 238 66696 173.83 1865 1828 373.2
A 13 6 32284 81.61 1865 1828 373.2
B 5 172 3028287 8898.44 1792 1746 340.1
B 0 219 431570 1263.74 1792 1746 340.1
B 5 200 215216 627.63 1792 1746 340.1
C 0 10 401931 969.9 1797 1815 412.5
C 7 221 54588 127.92 1797 1815 412.5
C 14 67 48478 113.11 1797 1815 412.5
D 8 195 3401863 7120.31 1745 1708 477.5
D 2 250 2092631 4378.63 1745 1708 477.5
D 2 249 1061824 2220.0 1745 1708 477.5

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