ASTROSAT CZTI

Data Quality Report

Orbit 39102

Creation date: 2024-06-27T22:00:26.756759
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_067T01_9000005432_39102cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39102cztM0_level2_quad_clean.evt
Size (bytes)342,115,20088,113,600
Size326.3 MB 84.0 MB
Events in quadrant A2,869,474601,133
Events in quadrant B2,645,894611,588
Events in quadrant C3,919,760559,606
Events in quadrant D2,826,532534,003

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117122
B0113731
C0150521
D0119041

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5169290.561037%
B5169150.290192%
C51691573.037338%
D5169470.909267%

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 7023 5170 17 17 0.24% 0.33%
B 7023 5170 2 2 0.03% 0.04%
C 7023 5170 140 140 1.99% 2.71%
D 7023 5170 39 39 0.56% 0.75%

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 403246 3446.05 574 563 116.9
A 12 16 112143 954.87 574 563 116.9
A 7 3 88610 753.48 574 563 116.9
B 5 184 303671 2752.64 571 557 110.1
B 0 230 41401 370.91 571 557 110.1
B 0 199 27753 246.97 571 557 110.1
C 15 208 868686 6776.43 549 553 128.1
C 9 187 634247 4946.46 549 553 128.1
C 15 214 219740 1710.92 549 553 128.1
D 12 235 236364 1754.25 552 537 134.4
D 2 249 130530 966.98 552 537 134.4
D 13 171 106232 786.24 552 537 134.4

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