ASTROSAT CZTI

Data Quality Report

Orbit 37592

Creation date: 2024-06-27T21:41:56.337346
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_053T01_9000005338_37592cztM0_level2.evt modeM0/AS1T05_053T01_9000005338_37592cztM0_level2_quad_clean.evt
Size (bytes)414,809,28066,398,400
Size395.6 MB 63.3 MB
Events in quadrant A2,861,417424,461
Events in quadrant B3,401,827422,626
Events in quadrant C2,707,879417,620
Events in quadrant D3,248,616392,060

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115363
B0132862
C0110002
D0130812

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5046320.634166%
B50462565.073325%
C5046741.466508%
D50462414.776060%

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 7048 5047 32 32 0.45% 0.63%
B 7048 5047 231 231 3.28% 4.58%
C 7048 5047 78 78 1.11% 1.55%
D 7048 5047 248 248 3.52% 4.91%

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 323715 2676.74 595 584 120.7
A 15 222 115415 951.23 595 584 120.7
A 9 143 77672 638.58 595 584 120.7
B 5 172 492939 4421.53 588 575 111.4
B 5 255 275350 2467.54 588 575 111.4
B 0 189 80485 717.61 588 575 111.4
C 0 10 230119 1719.04 570 572 133.5
C 15 214 217674 1625.84 570 572 133.5
C 14 254 16646 120.38 570 572 133.5
D 1 52 419866 3114.12 553 537 134.7
D 12 233 297903 2208.37 553 537 134.7
D 2 249 129941 961.01 553 537 134.7

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