ASTROSAT CZTI

Data Quality Report

Orbit 47125

Creation date: 2024-06-27T23:32:00.172110
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/AS1C09_003T01_9000006298_47125cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47125cztM0_level2_quad_clean.evt
Size (bytes)501,903,360104,745,600
Size478.7 MB 99.9 MB
Events in quadrant A6,303,473714,778
Events in quadrant B4,162,609712,809
Events in quadrant C3,022,580701,150
Events in quadrant D4,588,524592,220

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229841
B0168531
C0138481
D0186381

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64621652.553389%
B64623064.735376%
C6463220.340399%
D646365510.134612%

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 7597 6463 30 30 0.39% 0.46%
B 7597 6463 233 233 3.07% 3.61%
C 7598 6464 13 13 0.17% 0.20%
D 7598 6463 466 466 6.13% 7.21%

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 3507475 24119.63 703 690 145.4
A 0 247 46441 314.67 703 690 145.4
A 0 243 12106 78.52 703 690 145.4
B 5 32 707466 5363.53 689 671 131.8
B 4 21 180745 1366.5 689 671 131.8
B 8 234 147301 1112.71 689 671 131.8
C 14 254 210863 1311.53 690 692 160.2
C 3 233 67619 417.64 690 692 160.2
C 15 208 52352 322.37 690 692 160.2
D 12 233 733973 4465.23 658 637 164.2
D 8 48 665554 4048.63 658 637 164.2
D 2 120 263065 1597.9 658 637 164.2

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