ASTROSAT CZTI

Data Quality Report

Orbit 44045

Creation date: 2024-06-27T22:58:42.891696
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_025T02_9000005938_44045cztM0_level2.fits modeM0/AS1A13_025T02_9000005938_44045cztM0_level2_quad_clean.evt
Size (bytes)514,460,160119,848,320
Size490.6 MB 114.3 MB
Events in quadrant A4,718,861790,447
Events in quadrant B3,811,033823,238
Events in quadrant C4,038,673800,502
Events in quadrant D5,881,434682,847

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189740
B0165840
C0173020
D0224960

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76392763.613038%
B76392423.167954%
C76381922.513747%
D763879810.447761%

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 7639 7639 3 3 0.04% 0.04%
B 7639 7639 3 3 0.04% 0.04%
C 7638 7638 44 44 0.58% 0.58%
D 7638 7638 419 419 5.49% 5.49%

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 10 83 1157058 6242.77 889 869 185.2
A 15 223 43387 229.57 889 869 185.2
A 4 0 35965 189.5 889 869 185.2
B 0 200 180141 1005.75 884 854 178.3
B 0 213 98379 547.09 884 854 178.3
B 12 111 23272 125.76 884 854 178.3
C 14 254 267540 1282.0 875 879 208.0
C 15 158 167407 800.6 875 879 208.0
C 3 233 101487 483.68 875 879 208.0
D 1 52 1921578 9026.04 843 814 212.8
D 2 249 260975 1222.55 843 814 212.8
D 5 222 123582 576.91 843 814 212.8

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