ASTROSAT CZTI

Data Quality Report

Orbit 38126

Creation date: 2024-06-27T21:48:44.353289
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/AS1C07_001T12_9000005366_38126cztM0_level2.fits modeM0/AS1C07_001T12_9000005366_38126cztM0_level2_quad_clean.evt
Size (bytes)352,356,48093,614,400
Size336.0 MB 89.3 MB
Events in quadrant A3,314,455632,979
Events in quadrant B2,905,566645,873
Events in quadrant C2,729,940625,115
Events in quadrant D3,677,999557,543

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132823
B0123392
C0114472
D0147072

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5332711.331583%
B5332991.856714%
C5332350.656414%
D53322374.444861%

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 7125 5333 61 61 0.86% 1.14%
B 7125 5333 68 68 0.95% 1.28%
C 7125 5333 30 30 0.42% 0.56%
D 7124 5332 223 223 3.13% 4.18%

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 12 16 474589 3928.34 599 589 120.7
A 10 83 377506 3123.75 599 589 120.7
A 12 194 75885 624.03 599 589 120.7
B 4 81 242249 2137.16 600 585 113.1
B 5 172 105297 926.02 600 585 113.1
B 0 229 97807 859.79 600 585 113.1
C 15 214 221494 1600.93 595 599 138.0
C 1 23 126042 909.14 595 599 138.0
C 0 10 33557 238.86 595 599 138.0
D 10 40 599759 4263.21 583 567 140.5
D 13 249 189382 1343.41 583 567 140.5
D 12 227 104802 741.63 583 567 140.5

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