ASTROSAT CZTI

Data Quality Report

Orbit 44663

Creation date: 2024-06-27T23:05:03.086286
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_072T01_9000006008_44663cztM0_level2.fits modeM0/AS1A13_072T01_9000006008_44663cztM0_level2_quad_clean.evt
Size (bytes)445,821,120109,748,160
Size425.2 MB 104.7 MB
Events in quadrant A4,994,327733,592
Events in quadrant B3,354,534773,426
Events in quadrant C2,931,739734,391
Events in quadrant D4,726,075636,172

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200472
B0144092
C0133672
D0185682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63881572.457733%
B63881101.721979%
C6388190.297433%
D63883695.776456%

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 7563 6389 10 10 0.13% 0.16%
B 7563 6389 30 30 0.40% 0.47%
C 7563 6389 9 9 0.12% 0.14%
D 7563 6389 315 315 4.17% 4.93%

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 1956356 13109.87 720 705 149.2
A 2 79 125173 834.38 720 705 149.2
A 13 248 58102 384.77 720 705 149.2
B 0 183 168060 1189.45 727 706 140.7
B 0 189 111496 787.43 727 706 140.7
B 5 172 90725 639.8 727 706 140.7
C 14 254 76874 461.83 708 712 164.9
C 12 2 53950 322.83 708 712 164.9
C 12 250 16810 97.62 708 712 164.9
D 1 52 865291 5047.93 685 663 171.3
D 13 249 727069 4240.96 685 663 171.3
D 2 249 244914 1426.0 685 663 171.3

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