ASTROSAT CZTI

Data Quality Report

Orbit 44258

Creation date: 2024-06-27T23:01:05.479714
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/AS1A13_080T05_9000005980_44258cztM0_level2.fits modeM0/AS1A13_080T05_9000005980_44258cztM0_level2_quad_clean.evt
Size (bytes)469,290,240104,434,560
Size447.6 MB 99.6 MB
Events in quadrant A5,503,561704,290
Events in quadrant B4,522,618715,468
Events in quadrant C3,008,769685,786
Events in quadrant D3,850,677619,773

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212141
B0177051
C0134561
D0159381

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62632103.353026%
B62642534.038953%
C6263180.287402%
D62631592.538719%

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 7383 6264 93 93 1.26% 1.48%
B 7384 6265 93 93 1.26% 1.48%
C 7383 6264 8 8 0.11% 0.13%
D 7383 6264 128 128 1.73% 2.04%

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 1648662 11442.07 691 677 144.0
A 15 223 848350 5885.45 691 677 144.0
A 10 248 146300 1011.07 691 677 144.0
B 0 200 853428 6482.19 689 671 131.6
B 4 170 188983 1431.44 689 671 131.6
B 4 173 120037 907.35 689 671 131.6
C 3 233 181363 1147.94 668 669 157.4
C 4 254 143423 906.91 668 669 157.4
C 14 254 72772 458.07 668 669 157.4
D 13 171 225840 1337.43 662 640 168.4
D 5 235 216678 1283.02 662 640 168.4
D 1 52 204982 1213.55 662 640 168.4

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