ASTROSAT CZTI

Data Quality Report

Orbit 16411

Creation date: 2024-06-27T17:22:17.531952
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/AS1A05_069T01_9000002424_16411cztM0_level2.evt modeM0/AS1A05_069T01_9000002424_16411cztM0_level2_quad_clean.evt
Size (bytes)496,598,40091,411,200
Size473.6 MB 87.2 MB
Events in quadrant A3,141,230595,179
Events in quadrant B3,674,766606,843
Events in quadrant C3,376,533578,573
Events in quadrant D4,407,907536,379

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136803
B0151402
C0143092
D0175862

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6464290.448639%
B64641432.212252%
C6464741.144802%
D64643635.615718%

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 7605 6466 2 2 0.03% 0.03%
B 7605 6466 75 75 0.99% 1.16%
C 7605 6466 1 1 0.01% 0.02%
D 7605 6466 304 304 4.00% 4.70%

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 15 174 63077 392.72 786 769 158.7
A 9 143 44322 274.51 786 769 158.7
A 15 223 14215 84.75 786 769 158.7
B 10 16 268490 1781.5 787 766 150.3
B 15 35 80007 527.29 787 766 150.3
B 0 189 73893 486.6 787 766 150.3
C 3 233 270257 1523.35 760 767 176.9
C 14 238 117311 658.79 760 767 176.9
C 7 247 12471 66.16 760 767 176.9
D 12 218 704709 3877.48 747 726 181.6
D 15 0 273994 1505.14 747 726 181.6
D 2 122 261467 1436.14 747 726 181.6

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