ASTROSAT CZTI

Data Quality Report

Orbit 40083

Creation date: 2024-06-27T22:12:08.612999
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/AS1T05_086T01_9000005518_40083cztM0_level2.fits modeM0/AS1T05_086T01_9000005518_40083cztM0_level2_quad_clean.evt
Size (bytes)419,817,60090,216,000
Size400.4 MB 86.0 MB
Events in quadrant A2,691,926646,041
Events in quadrant B2,479,294674,057
Events in quadrant C5,982,819530,752
Events in quadrant D3,999,357532,095

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110513
B0105502
C0211402
D0151442

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4975120.241206%
B497580.160804%
C4975105021.105528%
D49754208.442211%

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 6977 4976 5 5 0.07% 0.10%
B 6977 4976 3 3 0.04% 0.06%
C 6977 4976 895 895 12.83% 17.99%
D 6977 4976 389 389 5.58% 7.82%

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 431603 3667.4 574 566 117.5
A 9 143 19063 157.38 574 566 117.5
A 2 79 9931 79.68 574 566 117.5
B 0 189 150866 1352.14 581 568 111.2
B 4 200 22707 199.17 581 568 111.2
B 0 230 20237 176.95 581 568 111.2
C 9 187 3570523 28844.3 529 535 123.8
C 15 214 195526 1575.46 529 535 123.8
C 0 10 123778 995.76 529 535 123.8
D 12 227 1008240 7659.23 533 518 131.6
D 2 249 375859 2852.79 533 518 131.6
D 2 250 151019 1143.89 533 518 131.6

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