ASTROSAT CZTI

Data Quality Report

Orbit 48009

Creation date: 2024-09-04T19:10:17.173229
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_218T01_9000006386_48009cztM0_level2.fits modeM0/AS1T05_218T01_9000006386_48009cztM0_level2_quad_clean.evt
Size (bytes)607,726,08088,044,480
Size579.6 MB 84.0 MB
Events in quadrant A11,058,540409,231
Events in quadrant B3,056,681662,148
Events in quadrant C2,594,344633,556
Events in quadrant D5,316,669537,417

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370671
B0134662
C0124221
D0202861

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6056264243.626156%
B6056701.155878%
C6056120.198151%
D60565489.048877%

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 7101 6057 2570 2570 36.19% 42.43%
B 7101 6057 24 24 0.34% 0.40%
C 7101 6057 4 4 0.06% 0.07%
D 7101 6057 595 595 8.38% 9.82%

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 0 31 5433536 45957.75 565 554 118.2
A 10 83 3399160 28748.91 565 554 118.2
A 13 248 26879 222.68 565 554 118.2
B 0 200 160406 1233.53 655 637 129.5
B 0 198 106257 815.46 655 637 129.5
B 5 63 87717 672.32 655 637 129.5
C 14 254 53466 348.25 638 640 151.7
C 12 2 25682 165.09 638 640 151.7
C 1 3 6839 40.87 638 640 151.7
D 2 37 2514451 16198.35 614 594 155.2
D 11 224 85115 544.62 614 594 155.2
D 2 249 70793 452.34 614 594 155.2

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