ASTROSAT CZTI

Data Quality Report

Orbit 45933

Creation date: 2024-06-27T23:17:52.737730
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_033T03_9000006144_45933cztM0_level2.fits modeM0/AS1A13_033T03_9000006144_45933cztM0_level2_quad_clean.evt
Size (bytes)586,696,320102,090,240
Size559.5 MB 97.4 MB
Events in quadrant A5,533,564687,153
Events in quadrant B5,736,576666,794
Events in quadrant C3,152,126688,001
Events in quadrant D6,793,063596,616

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210201
B0215011
C0139811
D0246911

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64901472.265023%
B649066010.169492%
C64901121.725732%
D64905408.320493%

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 7395 6490 23 23 0.31% 0.35%
B 7395 6490 399 399 5.40% 6.15%
C 7395 6490 77 77 1.04% 1.19%
D 7395 6490 438 438 5.92% 6.75%

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 2734432 18262.54 717 702 149.7
A 0 247 18168 116.68 717 702 149.7
A 13 6 10601 66.13 717 702 149.7
B 3 112 2906319 20786.14 699 678 139.8
B 12 111 17568 120.83 699 678 139.8
B 0 245 16512 113.27 699 678 139.8
C 14 254 317882 1876.69 712 717 169.0
C 3 233 36933 214.29 712 717 169.0
C 12 249 10266 56.5 712 717 169.0
D 1 52 2075710 11772.19 692 669 176.3
D 11 241 1139813 6462.63 692 669 176.3
D 2 37 400808 2270.08 692 669 176.3

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